The Benzene Ring Is Part Of A Substituent Which Contains Nitrogen Patents (Class 564/50)
-
Patent number: 4473579Abstract: Tetrasubstituted urea and thiourea compounds useful as antiatherosclerotic agents, compositions thereof and processes for their preparation.Type: GrantFiled: January 26, 1982Date of Patent: September 25, 1984Assignee: American Cyanamid CompanyInventors: Vern G. Devries, Ransom B. Conrow
-
Patent number: 4472568Abstract: This invention relates to an improved process for the preparation of aromatic polyamines containing urethane and/or biuret and/or urea and/or isocyanurate groups and preferably also ether groups by the hydrolysis of poly-N-monoaryl-N',N'-dialkyl urea compounds (1-aryl-3,3-dialkyl ureas). The ureas are obtained by the reaction of secondary aliphatic, cycloaliphatic or saturated heterocyclic amines with divalent to tetravalent isocyanate compounds containing isocyanate end groups attached to aromatic residues. The ureas correspond to the general formula: ##STR1## wherein R.sup.1, R.sup.2 denote alkyl or cycloalkyl groups, or together form a ring andA denotes a divalent to tetravalent residue attached to the ureas by aromatic groups.Hydrolysis is carried out in the presence of water and up to two equivalents of a base containing hydroxide ions and/or up to two equivalents of a compound containing tertiary amino groups, optionally in the presence of solvents.Type: GrantFiled: October 28, 1982Date of Patent: September 18, 1984Assignee: Bayer AktiengesellschaftInventors: Werner Rasshofer, Gerhard Grogler
-
Patent number: 4454107Abstract: This invention relates to novel derivatives of imino diacetic acid of the formula: ##STR1## wherein R.sup.1 is selected from the group consisting of: ##STR2## wherein X is halo (chloro, bromo or iodo) and R.sup.2 is lower alkyl of from 1-5 carbon atoms. It also relates to a novel diagnostic kit for hepatobiliary imaging comprising ingredients employed in the intravenous injection of a complex of technetium 99m, and an imino diacetic acid of the above formula. It also relates to a process for preparing said compounds by reaction of nitrilotriacetic acid anhydride and an amine of the formula R.sup.1 NH.sub.2 wherein R.sup.1 is as defined hereinabove.Type: GrantFiled: August 30, 1982Date of Patent: June 12, 1984Assignee: Merck & Co., Inc.Inventor: Richard E. Rolleston
-
Patent number: 4440949Abstract: A new class of chemical compounds and their process of preparation is described. These compounds have valuable properties as anti-secretory, anti-spasmodic, anti-ulcerogenic and anti-diarrheal agents.Type: GrantFiled: December 30, 1980Date of Patent: April 3, 1984Assignee: William H. Rorer, Inc.Inventors: George H. Douglas, William L. Studt, Stuart A. Dodson
-
Patent number: 4435567Abstract: A process for the preparation of substituted urea derivatives, and compositions and concentrates for the same purpose are disclosed. According to the process the substituted urea derivatives of formula (I) ##STR1## wherein R is hydrogen, alkyl, aryl, cycloalkyl or aralkyl, R.sup.1 and R.sup.2 are hydrogen, alkyl, alkenyl, alkinyl, alkoxy, oxyalkyl, cycloalkyl, aralkyl, alkoxycarbonylalkyl, aryl or heteroaryl, or R.sup.1 and R.sup.Type: GrantFiled: December 28, 1981Date of Patent: March 6, 1984Assignee: Chinoin Gyogyszer es Vesgyeszeti Termekek Gyara R. T.Inventors: Gyorgy Lugosi, Antal Simay, Janos Bodnar, Laszlo Simandi, Eva Somfai
-
Patent number: 4417896Abstract: Novel compounds of the general formula ##STR1## wherein Z represents a substituted lower alkyl radical; each of R.sub.1 and R.sub.2 is hydrogen atom, a lower alkyl or a substituted lower alkyl identical with or different from Z and the functional groups NO.sub.2 and NR.sub.1 R.sub.2 can occupy all ring positions in relation to OZ, with the exception that if Z is .beta.-hydroxyethyl, --NO.sub.2 is in the 4 position and --N(R.sub.1)(R.sub.2) is in the 2 position then either R.sub.1 or R.sub.2 is other than hydrogen.The novel compounds are for dyeing human hair in a variety of yellow shades. The compounds of formula (I) may be used as aqueous or water-alcohol solutions to form dye compositions for dyeing human hair.Type: GrantFiled: April 6, 1982Date of Patent: November 29, 1983Assignee: Societe Anonyme dite: L'OrealInventors: Andree Bugaut, Patrick Andrillon
-
Patent number: 4418209Abstract: This invention describes a new class of 1-amidino-3-phenylthiourea and N'-phenylamidinothiourea compounds wherein the phenyl group is ortho substituted, and processes for their preparation. The phenylamidinothiourea compounds may be incorporated into pharmaceutical preparations which are useful for producing anti-ulcerogenic, antisecretory, antispasmodic, antihypertensive, anti-arrhythmic, anesthetic, antidiarrheal and antiparasitic action.Type: GrantFiled: December 21, 1981Date of Patent: November 29, 1983Assignee: William H. Rorer, Inc.Inventors: George H. Douglas, Julius Diamond, William L. Studt, Stuart A. Dodson
-
Patent number: 4410697Abstract: The invention relates to a new method for the preparation of N-aryl-N'-(mono- or disubstituted)-urea derivatives having the general formula (I), ##STR1## wherein Aryl is an optionally substituted phenyl group, andR.sup.1 and R.sup.2 each stand for an optionally substituted alkyl, cycloalkyl, alkoxy or phenyl group, orR.sup.1 and R.sup.2 may form, together with the adjacent nitrogen atom, a nitrogen-containing heterocyclic group which may contain a further hetero atom, orone of R.sup.1 and R.sup.2 may also stand for hydrogen,with the proviso that if one of R.sup.1 and R.sup.2 is an optionally substituted phenyl group, the other may represent only hydrogen atom or an optionally substituted alkyl or alkoxy group,by reacting a carbamate of the general formula (II) with an amine of the general formula (III),R.sup.1 R.sup.2 N--CO--X (II)Aryl--NH.sub.2 (III)or a carbamate of the general formula (IV) with an amine of the general formula (V),Aryl--NH--CO--X (IV)R.sup.1 R.sup.2 NH (V)wherein R.sup.1, R.sup.Type: GrantFiled: August 28, 1981Date of Patent: October 18, 1983Assignee: Reanal FinomvegyszergyarInventors: Sandor Torok, Lajos Voroshazy, Peter Galambos, Ivan Daroczi, Zoltan Ormenyi
-
Patent number: 4406692Abstract: Post-emergent herbicides having the formula ##STR1## wherein R is alkyl having 1-4 carbon atoms, inclusive; or alkenyl having 2-4 carbon atoms, inclusive; andX is selected from the group consisting of alkyl having 1-4 carbon atoms, inclusive; cycloalkyl having 3-6 carbon atoms, inclusive; dialkylamine wherein the alkyl groups each have 1-4 carbon atoms, inclusive; and N-alkyl-N-alkoxyamine wherein the alkyl and alkoxy groups each have 1-4 carbon atoms, inclusive.Type: GrantFiled: April 6, 1981Date of Patent: September 27, 1983Assignee: Stauffer Chemical CompanyInventor: Rayman Y. Wong
-
Patent number: 4406691Abstract: The ethynyl-phenylureas of the formula I ##STR1## wherein X is hydrogen, halogen, lower alkyl, lower alkoxy, haloalkyl or nitro, Y is oxygen or sulfur, R.sub.1 is hydrogen, alkyl, alkoxy, alkenyl, phenyl or benzyl, R.sub.2 is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl or benzyl, R.sub.1 and R.sub.2 together with the nitrogen atom to which they are bound are also a pyrrolidine, piperidine, morpholino or piperazine ring, R.sub.3 is hydrogen or lower alkyl, and R.sub.4 is hydrogen, alkyl, phenyl, pyridyl, alkenyl, cycloalkyl or cycloalkenyl, are novel substances. They are characterized by strong herbicidal activity.Type: GrantFiled: December 9, 1980Date of Patent: September 27, 1983Assignee: Ciba-Geigy CorporationInventor: Henry Szczepanski
-
Patent number: 4405358Abstract: Aralkylaniline derivatives of the general formula ##STR1## where R is alkoxy, cycloalkoxy, alkenyloxy, alkynyloxy, cyanoalkoxy, haloalkoxy, alkylthio, alkenylthio or alkynylthio or unsubstituted or substituted alkyl, cycloalkyl, alkenyl or alkynyl, Y is hydrogen, alkyl, halogen, alkoxy or haloalkyl, A is unsubstituted or substituted alkylene, Z is hydrogen, alkyl, haloalkyl, alkoxyalkyl, cycloalkyl, aralkyl, aryl, aryloxy, halogen, a C.sub.4 H.sub.4 -chain which is fused to the benzene radical to form an unsubstituted or substituted naphthyl radical, alkoxy, haloalkoxy, alkylthio, thiocyanato, cyano, ##STR2## R' and R" each, independently of one another, being hydrogen, alkyl, alkoxy, alkylthio, cycloalkyl or unsubstituted or substituted phenyl, and n is an integer from 1 to 4, and herbicides containing these compounds.Type: GrantFiled: May 1, 1981Date of Patent: September 20, 1983Assignee: BASF AktiengesellschaftInventors: Ulrich Schirmer, Wolfgang Rohr, Bruno Wuerzer
-
Patent number: 4399076Abstract: 2-Vinyl- and 2-ethylcyclopropanes having an aryl group and a nitrogen-containing radical substituted at the 1-position on the ring are provided. The novel 1,1-disubstituted 2-vinylcyclopropane and 2-ethylcyclopropane compounds of this invention have utility in herbicidal applications and are useful reactants. The 2-vinylcyclopropane derivatives are useful monomers for anionic and radical polymerizations.Type: GrantFiled: February 22, 1982Date of Patent: August 16, 1983Assignee: National Distillers and Chemical CorporationInventors: Richard G. Fayter, Jr., Allen L. Hall
-
Patent number: 4387106Abstract: Methods of treating atherosclerosis with di(aralkyl) ureas and di(aralkyl)thioureas, compositions thereof and processes for their preparation.Type: GrantFiled: January 26, 1982Date of Patent: June 7, 1983Assignee: American Cyanamid CompanyInventors: Vern G. De Vries, Elwood E. Largis
-
Patent number: 4387105Abstract: Method of treating atherosclerosis with dialkylureas and dialkylthioureas, compositions thereof and processes for their preparation.Type: GrantFiled: January 26, 1982Date of Patent: June 7, 1983Assignee: American Cyanamid CompanyInventors: Vern G. DeVries, Elwood E. Largis
-
Patent number: 4377522Abstract: There are presented novel benzodiazepine derivatives of the formula ##STR1## wherein R.sup.1 is lower alkyl, lower hydroxyalkyl or lower dialkylaminoalkyl, R.sup.2 and R.sup.3 each are lower alkyl, R.sup.4 is halogen, R.sup.5, R.sup.7 and R.sup.8 each are hydrogen or halogen and R.sup.6 is nitro, amino, lower alkylamino, lower dialkylamino or a group of the formula H.sub.2 N--C(CH.sub.3).sub.2 --CO--NH--, R.sup.9 R.sup.10 N--CO--NH-- or ##STR2## and either R.sup.9 is hydrogen or lower alkyl and R.sup.10 is lower alkyl or lower hydroxyalkyl or R.sup.9 and R.sup.10 together with the nitrogen atom are a 3- to 7-membered heterocycle which, provided it is at least 5-membered, can contain as a ring member an oxygen or sulfur atom or a group of the formula >N--R in which R is hydrogen or lower alkyl,and their pharmaceutically acceptable acid addition salts.Type: GrantFiled: July 6, 1981Date of Patent: March 22, 1983Assignee: Hoffmann-La Roche Inc.Inventors: Quirico Branca, Albert E. Fischli, Andre Szente
-
Patent number: 4353842Abstract: A novel method of treating gastrointestinal, spasmolytic and ulcerogenic disorders by the administration of amidinoureas is disclosed.Type: GrantFiled: February 5, 1980Date of Patent: October 12, 1982Assignee: William H. Rorer, Inc.Inventors: Julius Diamond, George H. Douglas
-
Patent number: 4350706Abstract: The invention relates to new urea and thiourea compounds as insecticides.The compounds, after having been processed to compositions, can successfully be used to control insects in a dosage from 10 to 5000 g of active substance per hectare.Type: GrantFiled: June 27, 1979Date of Patent: September 21, 1982Assignee: Duphar International Research B.V.Inventors: Marius S. Brouwer, Arnoldus C. Grosscurt
-
Patent number: 4337061Abstract: Novel compounds of the general formula ##STR1## wherein Z represents a substituted lower alkyl radical; each of R.sub.1 and R.sub.2 is hydrogen atom, a lower alkyl or a substituted lower alkyl identical with or different from Z and the functional groups NO.sub.2 and NR.sub.1 R.sub.2 can occupy all ring positions in relation to OZ, with the exception that if Z is .beta.-hydroxyethyl, --NO.sub.2 is in the 4 position and --N(R.sub.1)(R.sub.2) is in the 2 position then either R.sub.1 or R.sub.2 is other than hydrogen.The novel compounds are for dyeing human hair in a variety of yellow shades. The compounds of formula (I) may be used as aqueous or water-alcohol solutions to form dye compositions for dyeing human hair.Type: GrantFiled: May 3, 1976Date of Patent: June 29, 1982Assignee: Societe Anonyme dite: L'OREALInventors: Andree Bugaut, Patrick Andrillon
-
Patent number: 4326075Abstract: A new class of chemical compounds and their process of preparation is described. These compounds have valuable properties as anti-diarrheal agents.Type: GrantFiled: February 5, 1980Date of Patent: April 20, 1982Assignee: William H. Rorer, Inc.Inventors: Julius Diamond, George H. Douglas
-
Patent number: 4316861Abstract: N-o-nitro-phenyl- or -naphthyl-N'-halogensulfonyl ureas which may be substituted in their aromatic rings by a further nitro group (and the phenyl ureas also by fluoro, chloro, bromo, lower alkyl, lower alkoxy, trifluoromethyl, cyano or phenyl) are obtained by reacting the corresponding o-nitraniline with fluoro- or chlorosulfonylisocyanate. The products can be hydrolyzed to yield the corresponding nitroaryl ureas.Type: GrantFiled: December 20, 1979Date of Patent: February 23, 1982Assignee: Hoechst AktiengesellschaftInventors: Otto Arndt, Wolfgang Tronich
-
Patent number: 4314055Abstract: Certain 3,5-disubstituted-2,4,6-triiodoanilides of polyhydroxy-monobasic acids are useful as x-ray contrast agents. Representative of this class of compounds is the compound 3-gluconamido-2,4,6-triiodo-N-methyl-5-(N-methyl-acetamido)-benzamide and the compound 3-gluconamido-5-[N-(2-hydroxyethyl)acetamido]-2,4,6-triiodo-N-methylbenzam ide.Type: GrantFiled: March 29, 1977Date of Patent: February 2, 1982Assignee: Mallinckrodt, Inc.Inventors: George B. Hoey, George P. Murphy, Philip E. Wiegert, James W. Woods
-
Patent number: 4303780Abstract: This invention relates to ureylene prepared by reacting an oxyalkylated polyamine with urea and to uses of such ureylene for example in removing oils, solids, and combinations thereof from aqueous systems, etc.Type: GrantFiled: February 26, 1980Date of Patent: December 1, 1981Assignee: Petrolite CorporationInventor: Thomas J. Bellos
-
Patent number: 4289903Abstract: There are provided certain p-phenylalkoxy phenylurea and thiourea compounds useful for the control of undesirable plants in the presence of agronomic crops and to methods for the preparation of said phenylalkoxy phenylurea and thiourea compounds.Type: GrantFiled: June 25, 1979Date of Patent: September 15, 1981Assignee: American Cyanamid CompanyInventors: David M. Spatz, Barrington Cross
-
Patent number: 4288622Abstract: Diphenylamine of the formula ##STR1## wherein R.sub.1 and R.sub.4 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl having 1-6 carbon atoms, lower alkoxy having 1-6 carbon atoms, amino, lower alkyl amino wherein the alkyl moiety has 1-6 carbon atoms, acylamino, lower carbamylalkyl amino wherein the alkyl moiety has 1-6 carbon atoms, lower hydroxyalkyl amino wherein the alkyl moiety has 1-6 carbon atoms, lower carbalkoxy amino wherein the alkoxy moiety has 1-6 carbon atoms and ureido;R.sub.2 and R.sub.3 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl having 1-6 carbon atoms, lower alkoxy having 1-6 carbon atoms, acylamino and ureido;R.sub.5 and R.sub.8 each independently represent a member selected from the group consisting of hydrogen, halogen, lower alkyl having 1-6 carbon atoms and lower alkoxy having 1-6 carbon atoms; andR.sub.6 and R.sub.Type: GrantFiled: November 12, 1976Date of Patent: September 8, 1981Assignee: L'OrealInventors: Gregoire Kalopissis, Andree Bugaut, Francoise Estradier
-
Patent number: 4284572Abstract: Copolymerizable blocked isocyanate diols are prepared by reacting a blocking agent with an isocyanate group of an organic diisocyanate under controlled conditions, thereby forming a blocked isocyanate group, and reacting the second isocyanate group in a subsequent step with the amine portion of a selected amine diol under anhydrous conditions. The resultant products are used to prepare self-crosslinkable, linear polyurethanes of high molecular weight.Type: GrantFiled: December 15, 1978Date of Patent: August 18, 1981Assignee: National Starch and Chemical CorporationInventors: Henry Stanley, Dilip K. Ray-Chaudhuri
-
Patent number: 4283555Abstract: This invention describes novel chemical compounds which are 1-amidino-3-phenylureas. The method of preparing these compounds and their pharmaceutical uses is also disclosed.Type: GrantFiled: March 2, 1979Date of Patent: August 11, 1981Assignee: William H. Rorer, Inc.Inventors: Julius Diamond, Jerome J. Zalipsky
-
Patent number: 4283556Abstract: A process for the manufacture of a substantially isomerically pure acylanilide of the structure ##STR1## where R is hydrogen, lower alkyl, hydroxy-lower alkyl or lower alkoxy-lower alkyl;R.sub.1 is lower alkyl, phenyl, lower alkylphenyl, lower alkoxy, lower alkoxyphenyl, chlorophenyl, nitrophenyl, dichlorophenyl, chloro-lower alkyl, cyano-lower alkyl, lower alkyl amino, sulfamoylphenyl, carbamoylphenyl or lower alkoxy-lower alkyl; andX is --CO-- or --SO.sub.2 --;comprising the step of treating an alcohol solution of a diamino compound of the structure ##STR2## with an acylating agent, to give an alcohol solution of the acylanilide, wherein substantially equivalent amounts of the acylating agent and the diamino compound are used and wherein the treatment is carried out by the slow, drop-wise addition of the acylating agent at a temperature in the range of about 0.degree. to 5.degree. C.Type: GrantFiled: February 7, 1980Date of Patent: August 11, 1981Assignee: Toms River Chemical CorporationInventor: Philip C. Lang
-
Patent number: 4281187Abstract: 2,4-Dinitrophenyl urea is obtained in a technologically simple manner with high yield, if 2,4-dinitro-1-chlorobenzene 1s reacted with cyanamide, advantageously in an excess amount, at a temperature at from about 55.degree. to 75.degree. C. to yield 2,4-dinitrophenyl cyanamide which is subsequently hydrolyzed without intermediate isolation in an aqueous acid medium at a temperature of from about 40.degree. to 75.degree. C. 2,4-Dinitrophenyl urea serves as starting compound for the preparation of 5-amino-benzimidazolones which may be employed, for example, when preparing azo compounds.Type: GrantFiled: December 20, 1979Date of Patent: July 28, 1981Assignee: Hoechst AktiengesellschaftInventors: Theodor Papenfuhs, Kurt Gengnagel
-
Patent number: 4281188Abstract: This invention provides benzodiazepine derivatives of the general formula ##STR1## wherein R.sup.1 represents a lower alkyl group, R.sup.2 represents a hydrogen atom or a lower alkyl group, R.sup.3 represents a halogen atom and R.sup.4 represents a hydrogen or halogen atom and either R.sup.5 represents a hydrogen atom or a lower alkyl group and R.sup.6 represents a lower alkyl, lower hydroxyalkyl or lower acyloxyalkyl group or R.sup.5 represents a hydrogen atom and R.sup.6 represents an aryl or lower aralkyl group or R.sup.5 and R.sup.6 together with the nitrogen atom to which they are attached represent a 3-membered to 7-membered heterocycle which, when it is at least 5-membered, can contain as a ring member an oxygen or sulphur atom or a group of the formula >N--R.sup.7 in which R.sup.Type: GrantFiled: September 11, 1980Date of Patent: July 28, 1981Assignee: Hoffmann-La Roche Inc.Inventors: Albert E. Fischli, Andre Szente
-
Patent number: 4279637Abstract: This invention discloses chemical compounds of the formula ##STR1## wherein X and Z are each independently selected from the group consisting of halogen, haloalkyl, nitro, cyano, alkyl, alkoxy and alkylthio; m and n are each independently integers of from 0 to 4; Y is selected from the group consisting of oxygen, sulfur, methylene, sulfonyl and sulfinyl; and R is selected from the group consisting of hydrogen, alkyl and alkoxy. The compounds of the above description are useful as herbicides.Type: GrantFiled: May 29, 1980Date of Patent: July 21, 1981Assignee: Velsicol Chemical CorporationInventor: Frank Wu
-
Patent number: 4265907Abstract: Insecticidal compounds having the formula: ##STR1## wherein R is halogen (Cl, F, Br), C.sub.1 -C.sub.4 alkyl, NO.sub.2, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, cyano, CF.sub.3, CF.sub.3 O, CF.sub.3 S, ClF.sub.2, CHF.sub.2 O, or CHF.sub.2 S; n is 0, 1, or 2; R.sub.1 is C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, or C.sub.2 -C.sub.4 alkenyl; and R.sup.2 is hydrogen, cyano, formyl, C.sub.1 -C.sub.4 acyl, C.sub.1 -C.sub.4 carboalkoxy, carbamoyl, N-C.sub.1 -C.sub.4 alkylcarbamoyl, or N,N-di C.sub.1 -C.sub.4 alkylcarbamoyl.Type: GrantFiled: December 31, 1979Date of Patent: May 5, 1981Assignee: Mobil Oil CorporationInventor: Jill H. Paul
-
Patent number: 4265658Abstract: Compounds having the formula ##STR1## in which X is hydrogen, chloro or bromo; R is hydrogen or lower alkanoyl; R.sub.1 is lower alkyl, cyclopropyl or NR.sub.3 R.sub.4 ; R.sub.2 is hydrogen or lower alkanoyl; and R.sub.3 and R.sub.4 are independently hydrogen or lower alkyl, are useful as herbicides, primarily for post-emergent application.Type: GrantFiled: September 20, 1978Date of Patent: May 5, 1981Assignee: Stauffer Chemical CompanyInventor: Raymond A. Felix
-
Patent number: 4261845Abstract: Novel polyureas of the formula: ##STR1## wherein n is 9 to 18, m is 2 to 10, X and Y are each either ethyl, methyl or a hydrogen atom and R=aromatic, aliphatic or cycloaliphatic, are described herein. These polyureas are particularly useful as thickening agents for lubricating oils to make greases. The polyureas may be prepared by reacting the aminated products of propoxylated fatty alcohols with organic polyisocyanates. The reaction is a simple process requiring no heat. Very low levels of the resulting polyureas are required to thicken oils of lubricating viscosity into greases which have good high temperature stability.Type: GrantFiled: January 18, 1980Date of Patent: April 14, 1981Assignee: Texaco Development CorporationInventor: Michael Cuscurida
-
Patent number: 4257805Abstract: Certain (4-(substituted-phenylamino)-3-(trifluoromethyl)phenyl)ureas, and their use as herbicides.Type: GrantFiled: January 10, 1980Date of Patent: March 24, 1981Assignee: Shell Oil CompanyInventor: Kurt H. Pilgram
-
Patent number: 4258187Abstract: Improved process for the preparation of 6-substituted-4-phenylquinazolinone 3-oxides. Such compounds are useful as intermediates in the preparation of 3-fluorobenzodiazepines, which are useful as tranquilizers, muscle relaxants and sedatives.Type: GrantFiled: November 13, 1978Date of Patent: March 24, 1981Assignee: E. I. Du Pont de Nemours and CompanyInventor: William J. Middleton
-
Patent number: 4246196Abstract: Diaminophenyl ureas of the formula ##STR1## in which R is an inert substituent, are obtained from the corresponding dinitrophenyl urea by way of reduction, especially catalytic hydrogenation. Through a cyclization process, while splitting off ammonia, these ureas yield the corresponding aminobenzimidazolones, advantageously without an intermediate isolation of the diaminophenyl ureas.Type: GrantFiled: December 20, 1979Date of Patent: January 20, 1981Assignee: Hoechst AG.Inventors: Otto Arndt, Theodor Papenfuhs, Peter Bohme, Wolfgang Tronich, Bernhard Mees
-
Patent number: 4238503Abstract: This invention relates to the utility of certain anilide ureas as biocidal agents having the formula ##STR1## R is selected from the group of alkyls having from 1 to 6 carbon atoms, haloalkyls having from 1 to 6 carbon atoms, NR.sub.1 R.sub.2, NHR.sub.1, OR.sub.1 and SR.sub.1 in which R.sub.1 and R.sub.2 are independently lower alkyl having from 1 to 6 carbon atoms, X and Y are independently selected from the group consisting of H, Cl, CF.sub.3 and NHCOR.sub.3 and R.sub.3 is selected from the group of lower alkyl having from 1 to 6 carbon atoms, haloalkyl having from 1 to 6 carbon atoms, NR.sub.4 R.sub.5, NHR.sub.4, OR.sub.4 and SR.sub.4 in which R.sub.4 and R.sub.5 are independently lower alkyl having from 1 to 6 carbon atoms.Type: GrantFiled: March 1, 1979Date of Patent: December 9, 1980Assignee: Stauffer Chemical CompanyInventors: Eugene G. Teach, Don R. Baker