Abstract: Tertiary phosphine oxides, phosphine sulfides and/or phosphine dihalides are reduced to tertiary phosphines by reaction with a hydrocarbon in the presence of carbon at elevated temperatures.
Abstract: An improved, simplified process for producing 10-phenyl-10H-phenoxaphosphine in a yield of about 55% comprising reacting n-butyl lithium in a nonpolar hydrocarbon with diphenyl ether in tetramethylethylenediamine and diethyl ether, adding phenyl phosphonous dichloride and then water, and recovering the final product.
Abstract: Novel 10,10-Dihydro-10-[(substituted carbonyl)imino]-10-phenyl-10H-phenoxaphines of the formula: ##STR1## wherein A is selected from the group consisting of hydrogen and COOR.sub.1, where, when A is hydrogen the compound is in the form of a water soluble salt HnX, where n is an integer 1 or 2 and X is selected from the group consisting of sulfate, trefluoroacetate, bromide and chloride and R.sub.1 is selected from the group consisting of straight or branched chain alkyl(C.sub.1 -C.sub.4), alkenyl(C.sub.2 -C.sub.4), alkynyl(C.sub.2 -C.sub.4), cycloalkyl(C.sub.3 -C.sub.6), cycloalkyl(C.sub.3 -C.sub.6)methyl, benzyl, pyridylmethyl or which tetrahydro-3-furanyl; methods for using these compounds for effecting diuresis, treating hypertension and edema and lowering plasma renin activity in mammals; pharmaceutical compositions of matter containing these compounds and processes for their preparation.
Type:
Grant
Filed:
March 5, 1986
Date of Patent:
August 25, 1987
Assignee:
American Cyanamid Company
Inventors:
Andrew S. Tomcufcik, Joseph W. Marsico, Nancy H. Eudy, Howard Newman
Abstract: A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula ##STR1## wherein Me is an alkali metal, R.sup.1 and R.sup.2 each independently represents an alkyl-, aryl-, alkaryl- or aralkyl group, or R.sup.1 and R.sup.2 together form an alkylene group.
Type:
Grant
Filed:
November 13, 1985
Date of Patent:
July 28, 1987
Assignee:
Shell Oil Company
Inventors:
Richard L. Wife, Johannes J. M. Snel, Aart B. Van Oort
Abstract: There are provided compounds which are alkyl sulfonates substituted on a 5-membered heterocyclic or cyclic ring. The hetero-substituents of the ring may be O, S, R.sub.2 N, R.sub.3 R.sub.4.sup.+ N<, ##STR1## where R.sub.2, R.sub.3 and R.sub.4 are the same or different substituted or unsubstituted, and are hydrogen, alkyl or aryl. Optionally, the hetero-substituent may be replaced by R.sub.3 R.sub.4 C. The alkyl sulfonate substituent is in the 3 position of the ring and a substituted or unsubstituted alkyl substituent is in the 4 position of the ring. The compounds may be prepared by reacting X(CH.sub.2 CH.dbd.CHR).sub.2, where X is the above mentioned hetero-substituents or R.sub.3 R.sub.4 C<, with a bisulfate salt.
Abstract: The title compounds correspond to the formula ##STR1## and are useful as stabilizers for organic polymers and lubricating oils to counteract the degradative effects of heat, light and air.
Type:
Grant
Filed:
July 18, 1985
Date of Patent:
February 10, 1987
Assignee:
Ciba-Geigy Corporation
Inventors:
John D. Spivack, Stephen D. Pastor, Paul Odorisio
Abstract: A bicyclic phosphine oxide composition comprising the grouping ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating phosphine with an ethylenically unsaturated alicyclic hydrocarbon having a pendant olefin group.
Abstract: Transition metal-diorganophosphite complex catalyzed carbonylation processes, especially hydroformylation, as well as transition metal-diorganophosphite ligand complex compositions, diorganophosphite ligands and transition metal-diorganophosphite catalysts.
Type:
Grant
Filed:
December 28, 1984
Date of Patent:
July 8, 1986
Assignee:
Union Carbide Corporation
Inventors:
Ernst Billig, Anthony G. Abatjoglou, David R. Bryant, Rex E. Murray, John M. Mather
Abstract: A substituted alkanethiocarboxylic acid derivative of the formula ##STR1## in which A represents a CH grouping,X.sup.1 represents hydrogen, trifluoromethyl or chlorine,X.sup.2 and X.sup.3 independently of one another represent hydrogen, trifluoromethyl or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents hydrogen or optionally substituted radicals from the series comprising alkyl, alkenyl, alkinyl, aryl, aralkyl, aralkoxyalkyl and cycloalkyland its use in a herbicidal composition for combating weeds.
Type:
Grant
Filed:
May 22, 1985
Date of Patent:
July 8, 1986
Assignee:
Bayer Aktiengesellschaft
Inventors:
Heinz Forster, Ludwig Eue, Robert R. Schmidt
Abstract: This invention concerns itself with a novel class of dihalodiphospha-s-triazines as exemplified by the compound 1,3-bis[phenylchloro-phospha]-5-perfluoro-n-heptyl-2,4,6-triazines as well as their thio and azido substituted derivatives.
Type:
Grant
Filed:
April 19, 1984
Date of Patent:
December 17, 1985
Assignee:
The United States of America as represented by the Secretary of the Air Force
Inventors:
Kazimiera J. L. Paciorek, Reinhold H. Kratzer, David H. Harris, Mark E. Smythe, James H. Nakahara
Abstract: This invention concerns itself with a class of novel dihalo-substituted monophospha-s-triazines as exemplified by the compounds 1-dichlorophospha-3,5-bis(perfluoro-n-heptyl)-2,4,6-triazine and 1-dichlorophospha-3,5-bis[C.sub.3 F.sub.7 OCF(CF.sub.3)CF.sub.2 OCF(CF.sub.3)]-2,4,6-triazine, as well as their thio and azido derivatives.
Type:
Grant
Filed:
April 19, 1984
Date of Patent:
December 10, 1985
Assignee:
The United States of America as represented by the Secretary of the Air Force
Inventors:
Kazimiera J. L. Paciorek, Reinhold H. Kratzer, David H. Harris, Mark E. Smythe, James H. Nakahara
Abstract: Linear polychlorophosphazenes having a dichlorothiophosphoryl terminal group and corresponding to the formulaCl.sub.2 (S)P--NPCl.sub.2 ].sub.n Clwherein n is a number equal to or more than 4.The aforesaid linear polychlorophosphazenes are prepared by polycondensing P.sub.2 NSCl.sub.5 by heating under conditions adequate for liberating PSCl.sub.3.These polymers can be applied to all the uses of the classical polychlorophosphazenes.
Abstract: Compounds which are .beta.-farnesene derivatives obtainable as a Diels-Adler adduct of .beta.-farnesene and a dienophile or by a modification of such an adduct in a manner as defined herein are of value in pest control, particularly in the control of aphids.
Type:
Grant
Filed:
January 20, 1983
Date of Patent:
October 8, 1985
Assignee:
National Research Development Corporation
Inventors:
Glenn W. Dawson, David C. Griffiths, John A. Pickett
Abstract: Photographic silver halide material containing a ballasted electron-donor precursor compound yielding by alkaline hydrolysis an electron-donor compound (ED-compound) capable (1) of donating electrons to an oxidized electron-accepting silver halide developing agent e.g. for scavenging it, said electron-donor precursor compound corresponding to the following general formula: ##STR1## wherein: R represents hydrogen or a substituent, e.g. an acyl group, which on hydrolytic removal allows the replacement of R by H,R.sup.1, R.sup.2 and R.sup.3 (same or different) are hydrocarbon substituents or R.sup.3 is H, andZ and Y represent the necessary atoms to close a benzene ring that may be substituted or form a fused ring system.
Type:
Grant
Filed:
February 21, 1984
Date of Patent:
August 27, 1985
Assignee:
Agfa-Gevaert, N.V.
Inventors:
Christian C. Van de Sande, Andre Verhecken, Wilhelmus Janssens
Abstract: There are provided compounds which are alkyl sulfonates substituted on a 5-membered heterocyclic or cyclic ring. The hetero-substituents of the ring may be O, S, R.sub.2 N, R.sub.3 R.sub.4.sup.+ N<, ##STR1## where R.sub.2, R.sub.3 and R.sub.4 are the same or different substituted or unsubstituted, and are hydrogen, alkyl or aryl. Optionally, the hetero-substituent may be replaced by R.sub.3 R.sub.4 C. The alkyl sulfonate substituent is in the 3 position of the ring and a substituted or unsubstituted alkyl substituent is in the 4 position of the ring. The compounds may be prepared by reacting X(CH.sub.2 CH.dbd.CHR).sub.2, where X is the above mentioned hetero-substituents or R.sub.3 R.sub.4 C<, with a bisulfitc salt.
Abstract: The phospholes and P-functional phospholes correspond to the general formula: ##STR1## in which: R.sub.1 and R.sub.2 are identical or different and represent hydrogen or a lower alkyl group of C.sub.1 to C.sub.4 such as a methyl group, and R.sub.3 represents an aryl group (such as --C.sub.6 H.sub.5) or a substituted aryl group (such as --CH.sub.2 C.sub.6 H.sub.5) or an alkyl group (such as --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 to C.sub.12 H.sub.25) or a --(CH.sub.2).sub.n Z group where Z denotes a function of the --COO-alkyl type (such as --COOC.sub.2 H.sub.5), --CH, --CO-aryl (such as --COC.sub.6 H.sub.5), --CO-alkyl (such as --COCH.sub.3) or --OH and n.gtoreq.1.
Type:
Grant
Filed:
May 20, 1981
Date of Patent:
March 12, 1985
Assignees:
Institut National de Recherche Chimique Appliquee (IRCHA), Centre National de la Recherche Scientifique
Inventors:
Anne Breque, Georges Muller, Hubert Bonnard, Francois Mathey, Philippe Savignac
Abstract: Cyclic phosphine oxides of the formula: ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating an ethylenically unsaturated cyclic hydrocarbon with phosphine.The cyclic phosphine oxides are useful as flame retardants for styrene modified polyphenylene ether resins.
Abstract: 1-Oxo-phospholane-chlorohydrins are prepared by reacting 1-oxo-phospholenes with chlorine in the presence of bases which bond hydrogen chloride in a molar ratio of about 1:1:1 in water; the water is optionally in mixture with a water-miscible inert organic solvent. Most of the reaction products are new compounds, which are chiefly used as intermediate products in the field of plastics, of hydraulic fluids and of catalysts for converting isocyanates into carbodiimides.
Abstract: This process relates to the synthesis of unsaturated aliphatic esters useful as insect sex attractants, including gossyplure, the insect sex pheromone of the pink bollworm moth, Pectinophora gossypiella, and intermediates therefor. The process utilizes a cyclic phosphonium (Wittig) reagent.
Abstract: Alkylated phosphazene oligomers of the general formula (NP(X.sub.2)).sub.n PRH, wherein X represents chlorine or bromine, R represents a linear or branched alkyl, and n represents an integer from 2 to 8, are prepared by reacting, in a nonoxidizing atmosphere, a perhalopolyphosphazene, a Grignard reagent, and a cuprous complex in solution, followed by the addition of a secondary or tertiary alcohol. Polymers useful as high-temperature elastomers, are prepared from the halo-substituted oligomers by heating them at a temperature from about 200.degree. C. to about 300.degree. C., followed by a reaction with an amine, metal alkoxide, or a metal aryloxide at a temperature from 20.degree. to 200.degree. C.
Type:
Grant
Filed:
September 25, 1979
Date of Patent:
March 24, 1981
Assignee:
The United States of America as represented by the Secretary of the Navy
Abstract: 1-Oxophosphol-.DELTA..sup.3 -enes are prepared in a one-vessel process by reacting dichlorophosphanes, 2-N-acylaminophenols, organic nitrogen bases which bind hydrogen chloride and dienes in a molar proportion of about 1:1: at least 2:(1-2)in an inert solvent witout isolation of an intermediate stage. The reaction products are used as catalysts in the production of rigid polyurethane foams, as selective metal extraction agents or as growth regulators in plant protection.