Nitrogen Attached Indirectly To The Hetero Ring By Nonionic Bonding Patents (Class 549/451)
  • Patent number: 4610986
    Abstract: A (7S,9S) isomer or its racemic modification of the aminonaphthacene derivative of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a hydroxyl group or a lower alkoxy group, R.sup.2 is a hydrogen atom or a hydroxyl group, R.sup.3 and R.sup.4 are each a lower alkoxy group or, when taken together, represent an ethylenedioxy group or an oxo group, A is an ethylene group optionally bearing at least one lower alkyl and Q is a hydroxyl group, a lower alkoxy group or a dimethylamino group, or an acid addition salt thereof, which is useful as an anti-tumor agent.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: September 9, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kikuo Ishizumi, Michihisa Muramatsu, Norihiko Tanno, Hiromi Sato, Noboru Yoshida
  • Patent number: 4607045
    Abstract: Azolylmethylcycloacetals of the formula I ##STR1## where R is phenyl which can be substituted by halogen, or is C.sub.1 -C.sub.6 -alkyl, R.sup.1 is hydrogen or C.sub.1 -C.sub.3 -alkyl, Z is CH or N, and m is 0 or 1, and their physiologically tolerated addition salts with acids and their preparation are described.The novel substances have an antimycotic action.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: August 19, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Janssen, Friedrich-Wilhelm Kohlmann, Walter Wesenberg, Wolfgang Heberle
  • Patent number: 4603209
    Abstract: The present invention discloses a new class of highly fluorescent indicator dyes that are specific for calcium ions. The new fluorescent indicator dyes combine a stilbene-type fluorophore with a tetracarboxylate parent Ca.sup.2+ chelating compound having the octacoordinate pattern of liganding groups characteristic of EGTA and BAPTA. Preferred forms contain extra heterocyclic bridges to reinforce the ethylenic bond of the stilbene and to reduce hydrophobicity. Compared to their widely used predecessor, "quin2", the new dyes offer up to thirty-fold brighter fluorescence, major changes in wavelength (not just intensity) upon Ca.sup.2+ binding, slightly lower affinities for Ca.sup.2+, slightly longer wavelengths of excitation, and considerably improved selectivity for Ca.sup.2+ over other divalent cations. These properties, particularly the wavelength sensitivity to Ca.sup.2+, make the dyes useful indicators for many intracellular applications, especially in single cells, adherent cell layers, or bulk tissues.
    Type: Grant
    Filed: September 7, 1984
    Date of Patent: July 29, 1986
    Assignee: The Regents of the University of California
    Inventors: Roger Y. Tsien, Grzegorz Grynkiewicz
  • Patent number: 4594446
    Abstract: The invention relates to new antimicrobially active 3-cephem compounds, processes for preparing such compounds, new intermediate compounds comprising alkoxyimino dioxy butyric acid derivatives useful in said processes, and processes for preparation of said intermediates.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: June 10, 1986
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi, Hiromu Kochi, Tadashi Kitaguchi
  • Patent number: 4591601
    Abstract: Sulfamates of the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as herein defined have been found to exhibit anticonvulsant activity and are thus useful in the treatment of conditions such as epilepsy. Further, pharmaceutical compositions containing a compound of formula (I) as well as methods for their use and intermediates form part of the present invention.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: May 27, 1986
    Assignee: McNeilab, Inc.
    Inventors: Bruce E. Maryanoff, Samuel O. Nortey
  • Patent number: 4590282
    Abstract: Dioxolane and benzodioxin derivatives, intermediates therefor, synthesis thereof, and the use of the compounds for the control of pests.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: May 20, 1986
    Assignee: Sandoz Ltd.
    Inventor: Clive A. Henrick
  • Patent number: 4581462
    Abstract: The present invention provides certain 2,3-didehydro-5-oxopyrrolizidinones and indolizidinones which are useful as lipid-altering and anti-atherosclerotic agents.
    Type: Grant
    Filed: August 25, 1983
    Date of Patent: April 8, 1986
    Assignee: The Upjohn Company
    Inventors: Ernest W. Yankee, Ronald H. Rynbrandt, deceased
  • Patent number: 4576751
    Abstract: There is presented optically uniform .beta.-lactams of the formulae ##STR1## wherein Z is a readily cleavable acyl group, R.sup.1 is amino or a group convertible into amino, R.sup.2 is hydrogen or a readily cleavable protecting group and R.sup.3 and R.sup.4 each are a lower hydrocarbon group which optionally contains oxygen and which is attached via a carbon atom, whereby these groups can also be joined with one another to form a ring, with the proviso that R.sup.1 is a readily cleavable acylamino when R.sup.2 is hydrogen,and the corresponding optical antipodes, their manufacture and use in the manufacture of antimicrobially-active .beta.-lactams as well as novel intermediates usable in their manufacture.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: March 18, 1986
    Assignee: Hoffman-La Roche Inc.
    Inventors: Christian N. Hubschwerlen, Gerard Schmid
  • Patent number: 4575560
    Abstract: The invention is insecticidal diaminoguanidine hydrazone compounds which are also effective antifeeding agents for insects and methods for their preparation.
    Type: Grant
    Filed: February 25, 1985
    Date of Patent: March 11, 1986
    Assignee: American Cyanamid Company
    Inventors: Roger W. Addor, Donald P. Wright, Jr., Jack K. Siddens, John J. Hand
  • Patent number: 4570007
    Abstract: 2-Amino-1-(1,3-dioxolan-4-yl)ethanol compounds of formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and can be hydrogen or a lower alkyl group of 1-4 carbon atoms; or when R.sup.2 is an alkyl group of 1-4 carbon atoms, R.sup.1 can also be an alkoxy group of 1-4 carbon atoms; or R.sup.1 and R.sup.2 combined form an alkylene residue of 5 or 6 carbon atoms,are especially suited as intermediates in the production of opacifying compounds useful in X-ray contrast media.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: February 11, 1986
    Assignee: Shering Aktiengesellschaft
    Inventors: Ulrich Niedballa, Heinz Gries
  • Patent number: 4564479
    Abstract: Compounds of the formula I ##STR1## in which A is C.sub.2-12 -alkenyl, C.sub.4-8 -cycloalkenyl or a grouping--C(R).dbd.C(R')--Y and Y, R, R', R.sub.1, R.sub.2, R.sub.3 and R.sub.3 ' are as defined in patent claim 1, can be prepared in high yields in a simple and economical manner by reacting corresponding bromobenzenes or iodobenzenes with a compound HA in the presence of an alkali metal salt or alkaline earth metal salt of an aliphatic monocarboxylic acid having 1-12 C atoms or benzoic acid, of a cyclic or N,N-disubstituted amide as the solvent, particularly N,N-dimethylformamide, and of a palladium compound which can, if desired, contain arsenic or phosphorus, as the catalyst.
    Type: Grant
    Filed: October 29, 1982
    Date of Patent: January 14, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Alwyn Spencer
  • Patent number: 4547581
    Abstract: There is presented compounds of the formula ##STR1## wherein A is selected from the group consisting of ##STR2## R.sub.1 is selected from the group consisting of hydrogen, chlorine, bromine, lower alkyl, the group NR.sub.4 R.sub.5, the group --CH.sub.2 --CO--R.sub.7, the group --NH(CH.sub.2).sub.m NR.sub.8 R.sub.9, hydroxy, lower alkoxy, mercapto and lower alkyl mercapto; R.sub.2 is selected from the group consisting of hydrogen, amino and di-lower alkyl amino; R.sub.3 is selected from the group consisting of hydrogen, lower acyloxy and hydroxy; X is selected from the group consisting of hydrogen, halogen, trifluoromethyl, ethyl, .alpha.-hydroxy ethyl and acetyl; Y is hydrogen or halogen; R.sub.4 and R.sub.5 are hydrogen or lower alkyl or together with their co-bonded nitrogen atom form a five to seven membered heterocyclic group; R.sub.7 is selected from the group consisting of hydroxy lower alkoxy and NR.sub.8 R.sub.9 ; R.sub.8 and R.sub.
    Type: Grant
    Filed: August 23, 1984
    Date of Patent: October 15, 1985
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Rodney I. Fryer, Norman W. Gilman, Eugene J. Trybulski, Armin Walser
  • Patent number: 4540695
    Abstract: Aminonaphthacene derivatives of the formula: ##STR1## wherein A is either one of the following groups: ##STR2## wherein R.sup.1 is a hydrogen atom or a group of the formula: --COR.sup.7, R.sup.2 and R.sup.3 are each a lower alkoxy group or, when taken together, represent an ethylenedioxy group or an oxo group, R.sup.4 and R.sup.5 are both hydrogen atoms or either one of them is a hydrogen atom and the other is a group of the formula: --COR.sup.7, R.sup.6 is a hydrogen atom, a hydroxyl group or a group of the formula: --OCOR.sup.7 and R.sup.7 is a lower alkyl group, a halo(lower)alkyl group, a phenyl group or a halophenyl group, which are useful as anti-microbial and/or anti-tumor agents, or as intermediates in their production.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: September 10, 1985
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Kikuo Ishizumi, Naohito Ohashi, Michihisa Muramatsu
  • Patent number: 4530716
    Abstract: The oxime ethers of the formula I below are able to act as antidotes or safeners to protect cultivated plants from the phytotoxic effects of herbicides. Such cultivated plants are preferably sorghum, cereals, maize and rice, and herbicides are principally chloroacetanilides and thiocarbamates. The oxime ethers have the formula I ##STR1## wherein n is 1 or 2, each of R.sub.1 and R.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkyl each of R.sub.3 and R.sub.4 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkylthio, C.sub.1 -C.sub.4 alkylsulfinyl, C.sub.1 -C.sub.4 alkylsulfonyl, C.sub.1 -C.sub.4 haloalkylsulfinyl, C.sub.1 -C.sub.4 haloalkylsulfonyl or nitro; each of R.sub.5 and R.sub.6 independently of the other is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.2 -C.sub.8 alkoxyalkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: July 23, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Henry Martin, Urs Fricker
  • Patent number: 4518713
    Abstract: There are described analgesic substituted-1-aminoalkylamino-4-aryloxypiperidines of the formula ##STR1## where X is hydrogen, loweralkyl, CF.sub.3, acetyl or halogen; n is 1 or 2; R.sub.1 is H.sub.2 or oxygen; R.sub.2 is H, loweralkyl or benzyl; and R.sub.3 is oxygen or --OCH.sub.2 CH.sub.2 O--, which are useful as analgesic agents and intermediate compounds therefor.
    Type: Grant
    Filed: April 13, 1984
    Date of Patent: May 21, 1985
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Raymond W. Kosley, Jr., Richard C. Allen
  • Patent number: 4515960
    Abstract: The invention provides compounds of the formula I ##STR1## in which m is 1 to 3 and n is 1 to 4, a process for their preparation, and their use as intermediates for the manufacture of valuable medicaments, and starting products for the preparation of compounds of the formula I.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: May 7, 1985
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Volker Teetz
  • Patent number: 4506085
    Abstract: A compound represented by the formula ##STR1## wherein R.sup.1 represents a lower alkyl group, a phenyl group or a benzyl group, or the two R.sup.1 groups together represent a group of the formula --CH.sub.2 --.sub.n in which n is an integer of 4 to 7; R.sup.2 represents a hydrogen atom, an alkyl group, or a substituted or unsubstituted aralkyl group; and Z represents a hydrogen atom, a lower alkyl group or a substituted or unsubstituted benzyl group;and a process for production thereof. The compounds of this invention are useful as intermediates for the synthesis of various biologically active substances, such as various antibiotics, particularly .beta.-lactam antibiotic derivatives, thienamycin, antibiotic PS-5 and their analogous substances.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: March 19, 1985
    Assignee: Sanraku-Ocean Co., Ltd.
    Inventor: Yasuji Yamada
  • Patent number: 4503059
    Abstract: Substituted aminoketals of the formula ##STR1## in which R.sup.1 to R.sup.4 are various organic radicals andR.sup.2 may also be hydrogen,are fungicidally active. Some of the compounds are new.
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: March 5, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kr/a/ mer, Wolf Reiser, Dieter Berg, Wilhelm Brandes, Paul Reinecke
  • Patent number: 4501909
    Abstract: This invention provides novel aminopolyol derivative represented by the general formula ##STR1## wherein each of R and R' represents a hydrogen atom, or an alkyl or aryl group or R and R', taken together, form an alkylene group, R.sup.1 represents a lower alkyl group, R.sup.2 represents a hydrogen atom or an acyl group, and R.sup.3 represents a lower alkyl group; and a process for production thereof.The aminopolyol derivatives of formula (I) are useful as intermediates for the synthesis of amino sugars such as 3-epi.daunosamine, acosamine, ristosamine and daunosamine which is the sugar moiety of daunomycin useful as an anti-cancer agent.
    Type: Grant
    Filed: April 4, 1984
    Date of Patent: February 26, 1985
    Assignee: Sagami Chemical Research Center
    Inventors: Tamejiro Hiyama, Kazuhiro Kobayashi
  • Patent number: 4490374
    Abstract: The synthesis of substituted quinazolinones is described. The novel quinazolinones are renal vasodilators and thereby increase renal blood flow, and are useful as cardiovascular agents.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: December 25, 1984
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Victor T. Bandurco, Seymour D. Levine, Dennis M. Mulvey, Alfonso J. Tobia
  • Patent number: 4483995
    Abstract: The invention provides an organoleptically improved smoking tobacco product and additives therefor as well as methods of making the same.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: November 20, 1984
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4477556
    Abstract: A photopolymerizable coating composition comprising(1) a nongaseous, ethylenically unsaturated, polymerizable compound,(2) a specified acidic o-nitroaromatic compound, and(3) an organic, radiation-sensitive, free-radical generating system which is useful for making a positive or negative polymeric image on a substrate.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: October 16, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Dueber, William J. Nebe
  • Patent number: 4465503
    Abstract: There are presented new diphenyl ether derivatives having a substituent selected from a halogen atom, a trifluoromethyl group and a methoxy group at the 4-position in one phenyl moiety, having optionally also halo-substituents at the 2- and 6-positions, and having a nitro group at the 4'-position and a substituent selected from an unsubstituted or substituted (1,3-dioxorane-4-yl)methoxy group, an unsubstituted or substituted (1,3-dioxa-5-cyclohexyloxy) group and an alkyl- or (substituted)amino-sulfonyloxy group at the 3'-position in the other phenyl moiety. They exhibit improved herbicidal effects on various weeds without any adverse phytotoxic effect on crops, e.g. rice seedlings.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: August 14, 1984
    Assignee: Ube Industries Ltd.
    Inventors: Hakobu Sekioka, Mitsuaki Takenaka, Yoshio Kawaguchi, Seiji Takamura, Minoru Nishimura, Masanori Watanabe
  • Patent number: 4457763
    Abstract: Cetane rating of diesel fuel is increased by adding a dioxane nitrate such as m-dioxan-5-ol nitrate and 1,3-dioxolane-4-methanol nitrate.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: July 3, 1984
    Assignee: Ethyl Corporation
    Inventor: Paul D. Seemuth
  • Patent number: 4425357
    Abstract: Acyl anilines are disclosed having the formula ##STR1## wherein R and R.sup.1 (like or unlike each other)=H; CH.sub.3 ; C.sub.2 H.sub.5 ; n.C.sub.3 H.sub.7 ; --CH.sub.2 --CH.dbd.CH.sub.2 ; --CH.dbd.CH--CH.sub.3 ;R.sup.3 and R.sup.4 (like or unlike each other)=H; alkyl C.sub.1 -C.sub.3 ; halomethyl; Cl; F; CN; O-alkyl; S-alkyl; alkoxymethyl; orR.sup.3 and R.sup.4 together are (CH.sub.2 .dbd.) ##STR2## n=0,1 Z=phenyl optionally substituted; ##STR3## And R.sup.2 =H, CH.sub.3 ; m=1,2; Y=alkynyl C.sub.2 -C.sub.8 ; phenyl optionally substituted; phenyl-acetyl; furyl, thienyl; pyridyl; heterocyclic groups containing 2 or 3 heteroatoms, one of them different from nitrogen;R.sup.8 =CH.sub.3 ; alkoxymethyl; halomethyl; O-alkyl.The compounds of formula I are endowed with a high fungicidal activity and with a low phytotoxicity.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: January 10, 1984
    Assignee: Montedison S.p.A.
    Inventors: Enrico Bosone, Giovanni Camaggi, Lambertus de Vries, Carlo Garavaglia, Luigi Garlaschelli, Franco Gozzo, Jan C. Overeem, Simone Lorusso
  • Patent number: 4422864
    Abstract: Cyclohexanedione derivatives of the general formula ##STR1## where R.sup.1 is alkyl, R.sup.2 is alkyl, alkenyl, alkynyl or haloalkenyl, X is alkylene, n is 0 or 1, Y is a heterocyclic radical and Z is hydrogen or methoxycarbonyl, and salts of these compounds are used in herbicides.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: December 27, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Becker, Dieter Jahn, Wolfgang Rohr, Walter Himmele, Hardo Siegel, Bruno Wuerzer
  • Patent number: 4412083
    Abstract: Described is a process for preparing solanone and norsolanadione using chemical intermediates defined according to the generic structure: ##STR1## wherein X is one of the moieties: ##STR2## wherein R represents hydrogen or methyl; wherein Y represents one of the structures: ##STR3## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond; with the provisos that:(i) when Y is the moiety having the structure: ##STR4## then X is the moiety having the structure: ##STR5## (ii) when X is the moiety having the structure: ##STR6## then Y is the moiety having the structure:--C.tbd.N]In preparing solanone, the compound having the structure: ##STR7## or a mixture of compounds defined according to the structure: ##STR8## is reacted with methyl lithium and the resulting intermediate is hydrolyzed and the resulting compound is dehydrated.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: October 25, 1983
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Kenneth K. Light, William L. Schreiber, Joseph A. McGhie, Ronald P. Schreck, Takao Yoshida, Loren B. Schreiber, Ranya Muralidhara
  • Patent number: 4402728
    Abstract: This application discloses compounds of the structural formula: ##STR1## wherein each X is independently selected from the group consisting of oxygen and sulfur; m is 0 or 1; R is alkyl. Each R.sup.1 is independently selected from the group consisting of hydrogen and alkyl. Y is selected from the group consisting of alkyl and ##STR2## wherein each Z is independently selected from the group consisting of hydrogen and alkyl.These compounds are particularly useful as pre-emergence herbicides.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: September 6, 1983
    Assignee: Velsicol Chemical Corporation
    Inventors: Leonard J. Stach, Sun M. Chen
  • Patent number: 4397677
    Abstract: This invention discloses new chemical compounds of the formula ##STR1## wherein R.sup.1 is alkyl; R.sup.2 and R.sup.3 are hydrogen or alkyl; and X is selected from the group consisting of alkyl and haloalkyl, and their utility as herbicides.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: August 9, 1983
    Assignee: Velsicol Chemical Corporation
    Inventor: Leonard J. Stach
  • Patent number: 4376864
    Abstract: The invention is directed to cyclic acetals of glutamic acid-.gamma.-semialdehyde of the formula ##STR1## in which A is an unsubstituted alkylene group having 2 to 3 carbon atoms or such an alkylene group substituted by 1 to 2 methyl groups and to a method of producing a compound of formula (I) by reaction of a compound of the general formula ##STR2## in which A is as defined above with hydrogen cyanide or a cyanide ion supplying compound, ammonia or an ammonium ion supplying compound and carbon dioxide or a carbonate ion supplying compound and basic hydrolysis of the reaction mixture obtained and to using the compound of formula (I) to produce D,L-proline.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: March 15, 1983
    Assignee: Degussa AG
    Inventors: Karlheinz Drauz, Axel Kleemann, Marc Samson
  • Patent number: 4365073
    Abstract: Novel cyano- and hydroxyl-substituted cyclic compounds of the formula: ##STR1## wherein B, R, R' and R" are named substituents are disclosed.
    Type: Grant
    Filed: October 20, 1980
    Date of Patent: December 21, 1982
    Assignee: The Dow Chemical Company
    Inventors: Bart J. Bremmer, Robert L. Reierson
  • Patent number: 4361702
    Abstract: A process is provided for the preparation of trans-3-formylbut-2-enenitrile (V), a key intermediate in the synthetic pathway leading to trans-zeatin (I) and dihydrozeatin (II), both of which are naturally occurring cytokinins. The process involves a base catalyzed condensation of a dialkyl or cyclic acetal of pyruvaldehyde (III) with acetonitrile to yield the corresponding dialkyl or cyclic acetal of 3-formylbut-2-enenitrile (IV). The reaction proceeds regioselectively to form the favored trans-isomer in good yield. The .alpha.,.beta.-unsaturated nitrile thus formed is hydrolyzed under acidic conditions to yield trans-3-formylbut-2-enenitrile (V), which can be easily distilled without contamination of the cis-isomer. The trans-3-formylbut-2-enenitrile can be selectively or exhaustively reduced to form either trans-3-hydroxymethylbut-2-enylamine (VI) or 3-hydroxymethylbutylamine (VII), which compounds can be condensed with 6-chloropurine (IX) by known methods to form trans-zeatin or dihydrozeatin respectively.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: November 30, 1982
    Assignee: Alberta Research Council
    Inventors: Shi-Chow Chen, John M. MacTaggart
  • Patent number: 4350824
    Abstract: A process for the preparation of a 1,1-dichloroalkene of the formula ##STR1## in which R.sup.1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, andR.sup.2 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, orR.sup.1 and R.sup.2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain,comprising reacting a carbonyl compound of the formula ##STR2## with a trichloromethanephosphonic acid ester of the formula ##STR3## in which R.sup.3 each individually is an alkyl or phenyl radical, or the two radicals R.sup.3 together are alkanediyl,in the presence of at least an equimolar amount of a phosphorous acid triamide of the formulaP(NR.sup.4.sub.2).sub.3in whichR.sup.4 each independently is an alkyl radical, or the two radicals R.sup.4 together are alkanediyl.Advantageously,R.sup.1 is hydrogen,R.sup.2 a C.sub.2 to C.sub.
    Type: Grant
    Filed: February 23, 1981
    Date of Patent: September 21, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Jochem Riebel, Fritz Maurer, Uwe Priesnitz
  • Patent number: 4347372
    Abstract: A process for protecting cultivated plants against aggressive agricultural chemicals is described in which oxime derivatives of the formula ##STR1## are used as antidotes. Either the cultivated area for the cultivated plants or the cultivated plants themselves or parts of the plant (seeds, tubers, stem parts and the like), as desired, can be treated with these oxime derivatives, which are used as a dressing.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: August 31, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Alfons Lukaszczyk, Henry Martin, Peter J. Diel, Werner Fory, Karl Gatzi, Haukur Kristinsson, Beat Muller, Rene Muntwyler, Johannes P. Pachlatko, Hermann Rempfler, Rolf Schurter, Henry Szczepanski
  • Patent number: 4335054
    Abstract: Compounds of the formula I ##STR1## in which p, m, Z, R, R' and Y are as defined in claim 1, can be obtained in a simple and economical manner by a novel process which comprises reacting a halide of the formula ##STR2## with the corresponding acrylic acid derivative, in the presence of a base and of certain palladium catalysts, such as palladium acetate. The compounds (I), and functional derivatives prepared therefrom, are useful for the preparation of photocrosslinkable polymers, which can in particular be employed as (so-called) photoresists.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: June 15, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Ulrich Blaser, Dieter Reinehr, Alwyn Spencer