U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"If you build a better mousetrap, you will catch better mice."

George Gobel

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 987/127 - Trivalent P compound having the structure (C or H)(C)-P-P-(C)(C or H) (9/50P)


Subclass of Class 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system
Definition: Subject matter wherein the P compound is trivalent and contains
No. of patents: 61
Last issue date: 10/23/1990


1    
NumberTitleIssue Date
4965404Process for the preparation of lithium diphenylphosphinobenzene-m-monosulfonate
There is provided an industrial process for the advantageous preparation of high-purity lithium diphenylphosphinobenzene-m-monosulfonate....
10/23/1990
4956055Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
09/11/1990
4954227Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each AR is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
09/04/1990
4952728Process for preparation of derivatives of phosphinous acid and intermediate product used to that effect
New chemical product, constituted by an organic phosphorus compound of the structure ##STR1## where Q is an N or O atom, T is an alkylene or arylene, possibly carrying substituents, or not existing, while R1 to R7, the same or ...
08/28/1990
4922025Preparation of organophosphorus compounds
Organophosphorus compounds are prepared by reacting an unsaturated compound, such as a striaght-chain, branched or cyclic olefin or a diene having conjugated or nonconjugated double bonds, with a phosphine by a process in which phosphine and/or phosphine-...
05/01/1990
4902675"2-pyridyl and 4-pyridyl phosphine gold (I) anti tumor complexes"
2-pyridyl and 4-pyridyl phosphine gold compounds of the formula: ##STR1## and 2-pyridyl phosphine gold compounds of the formula: ##STR2## and pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a comp...
02/20/1990
4879008Preparation of bidentate ligands
A process is disclosed for preparing bidentate ligands of the formula: ##STR1## wherein: each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl; the x bonds a...
11/07/1989
4879416Preparation of bidentate ligands
The process for preparing a bidentate ligand comprising the steps, (1) contacting with ozone under ozonolysis conditions a suspension in a hydroxylic reaction medium of phenanthrene or a phenanthrene derivative to form an ozonated intermediate, (2) contacting ...
11/07/1989
4857549Antitumor compounds
Compounds, pharmaceutical compositions and a method for treating tumors by administering an effective tumor cell growth-inhibiting amount of a ଱,ω-bis(disubstitutedphosphino)hydrocarbon compound or a [଱,ω-bis(disubstitutedphosphino)hydrocarb...
08/15/1989
4766226Antitumor pharmaceutical compositions and methods for treating tumors employing ଱,ω-bis(disubstitutedphosphino)hydrocarbon derivatives or [଱, ω-bis(disubstitutedphosphino)hydrocarbon] d i
Antitumor pharmaceutical compositions and methods for treating tumors employing ଱,ω-bis(disubstitutedphosphino)hydrocarbon derivatives or [଱,ω-bis(disubstituted phosphino)hydrocarbon] digold(I), digold(III), disilver(I), and dicopper(I) deri...
08/23/1988
4764509Pharmaceutical compositions containing di-gold phosphine
Pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound, and a method for treating tumor cells sensitive to such a di-gold phosphine compound which comprises administering a tumor cell growth-inhibiting ...
08/16/1988
4758315Process for the electrosynthesis of tertiary arylalkylphosphines
The process according to the invention is a process for the electrosynthesis of teritary arylalkylphosphines by electrochemical reduction of arylhalophosphines in the presence of aliphatic halides, in an organic solvent medium. The anode, made of a reduci...
07/19/1988
4758589Tetraphosphine-coordinated gold(I) complexes
Tetraphosphine-coordinated gold (I) compounds, pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound, and a method of treating tumor cells sensitive to such a compound which comprises administering a t...
07/19/1988
4757156Process for making tertiary alkylphosphines
Tertiary alkylphosphines of the general formula R3 P, in which R stands for identical or different, linear, unsubstituted alkyl groups having 3 to 20 carbon atoms, with the proviso however that one of the alkyl groups may be a secondary butyl g...
07/12/1988
4755611Certain bio-(bi-2-thienyl or 2-furyl phosphino) lower alkanes having anti-tumor properties
Heterocyclic phosphine compounds, pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound, and a method for treating tumor cells sensitive to such a compound which comprises adminstering a tumor cell gro...
07/05/1988
4734514Hydrocarbon-substituted analogs of phosphine and arsine, particularly for metal organic chemical vapor deposition
Organometallic compounds having the formulas: ##STR1## wherein N is selected from phosphorus and arsenic, H is hydride, and X and Y are independently selected from hydride, lower alkyl cyclopentadienyl, and phenyl, except that Y cannot be hydrogen; a...
03/29/1988
4727193Reduction of teritiary phosphine oxides, phosphine sulfides or phosphine dihalides with hydrocarbons
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....
02/23/1988
4720561Preparation of metal alkyls
A method of preparing a metal alkyl of formula (R3 M)x where R3 represents three alkyl groups R which may be the same or different, M represents a Group III metallic element and x is 1 or 2, which method comprises (a) form...
01/19/1988
4720560Hybrid organometallic compounds, particularly for metal organic chemical vapor deposition
Compounds having the molecular formula: wherein x is an integer from 2 to 4 inclusive, each said R substituent is independently selected from hydride, lower alkyl, phenyl, alkyl-substituted phenyl, cyclopentadienyl, and alkyl substituted cyclopentadienyl,...
01/19/1988
4716230Certain bis(di-2 or 4-pyridyl-phosphino) alkanes #10 having anti-tumor properties
Heterocyclic phosphine compounds, pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound, and a method for treating tumor cells sensitive to such a compound which comprises administering a tumor cell gr...
12/29/1987
4710587Process for removing triorganophosphine from an organic liquid
A process for selectively removing alkyl substituted phosphine from an organic liquid containing same and triarylphosphine by treating said liquid with phosphoric acid....
12/01/1987
4698447Process for producting 10-phenyl-10H-phenoxaphoshine
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 phosphono...
10/06/1987
4698448Method for making aromatic phosphorus compounds
Compounds of the formula ##STR1## wherein R is lower alkyl or aryl, Y is oxygen or sulfur, m is 0 or 1, Ar is arylene, and X is halogen, methyl, or aryloxy, or polymers containing repeating units of this kind are prepared from a compound R--P(Y)...
10/06/1987
4698422Triphos and tetraphos gold compounds and ligands
Triphos and tetraphos gold compounds which have tumor cell growth-inhibiting activity, pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound or its corresponding triphos or tetraphos ligand, and a meth...
10/06/1987
4680286Use of selenium-containing compounds for negating the toxic effects of gold compounds used in the treatment of rheumatoid arthritis, and a novel selenium-containing gold compound and use thereof as an anti-rheumatoid arthritis medicine
The toxic effects of gold compounds used in the treatment of rheumatoid arthritis can be negated by the use of a selenium-containing compound. A new selenium-containing gold compound has been found to be useful as a gold compound type anti-rheumatoid arth...
07/14/1987
4675427Tetraphosphine-coordinated gold(I) complexes
Tetraphosphine-coordinated gold(I) compounds, pharmaceutical compositions containing an effective, tumor cell growth-inhibiting amount of such a compound, and a method for treating tumor cells sensitive to such a compound which comprises administering a t...
06/23/1987
4668823Process for the preparation of bulky alkyldiarylphosphines and unsymmetrical aryldialkyl phosphines
A process for the selective production of bulky alkyldiarylphosphines and unsymmetrical dialkylarylphosphines comprising reacting a first Grignard reagent having a bulky alkyl group with an aryldichlorophosphine and thereafter and without isolating the re...
05/26/1987
4645756[଱,ω-bis(diphenylphosphino)hydrocarbon]bis[(thiosugar)gold] and bis[(selenosugar)gold] derivatives, pharmaceutical compositions and method of use
This invention relates to [଱,ω-bis(diphenylphosphino)hydrocarbon]bis[(thiosugar)gold] and bis[(selenosugar)gold] derivatives, pharmaceutical compositions comprising an effective tumor cell growth-inhibiting amount of such a derivative, and a m...
02/24/1987
4618719Addition of phosphines to alpha-olefins
There is disclosed an improved process for the addition of phospines to alpha-olefins at high yields and conversions. The process involves the absence of a catalyst whose residues could interfere with the utility of the product, such as n-hexyldiphenylpho...
10/21/1986
4618720Preparation of alkyldiarylphosphines
An improved process is disclosed for preparing alkyldiarylphosphines and related compounds. Typically, diphenylphosphinous chloride is reacted in solution with an excess of an alkali metal; and the reaction product reacted with chlorohexane thereby formin...
10/21/1986
4514575Process for preparing tertiary phosphines
Tertiary phosphine oxides, such as triphenylphosphine oxide, are reduced to the corresponding phosphines with trichlorosilane in an inert halogenated hydrocarbon solvent....
04/30/1985
4512967Cationic technetium complexes useful as radiodiagnostic agents
A cationic lipophilic complex of technetium is disclosed wherein all of the coordination positions of the technetium atom are filled with a neutral donor atom having a pair of electrons available for forming a coordinate bond with technetium. The donor at...
04/23/1985
4507504Process for preparing tertiary phosphines
Tertiary phosphine oxides, such as triphenylphosphine oxide, are reduced to the corresponding phosphines in the presence of a trialkylaluminum/boron trihalide reducing agent....
03/26/1985
4507503Process for preparing tertiary phosphines
Tertiary phosphine oxides, such as triphenylphosphine oxide, are reduced to the corresponding phosphines in the presence of a trialkylaluminum/trialkyl borate reducing agent....
03/26/1985
4507502Process for preparing tertiary phosphines
A tertiary phosphine oxide, such as triphenylphosphine oxide, is reduced to the corresponding tertiary phosphine in the presence of a sodium aluminum hydride/sodium aluminum chloride reducing agent....
03/26/1985
4507501Process for preparing tertiary phosphines
A tertiary phosphine oxide, such as triphenylphosphine oxide, is reduced to the corresponding tertiary phosphine in the presence of a sodium aluminum hydride/aluminum chloride reducing agent....
03/26/1985
4489054Cationic lipophilic complexes of 99m Tc and their use for myocardial and hepatobiliary imaging
A method of imaging organs with 99m Tc radiopharmaceuticals, especially of hepatobiliary imaging and negative myocardial infarct imaging in a mammal which comprises administering to the mammal a hepatobiliary or myocardial imaging amount of a c...
12/18/1984
4480137Trihydrocarbyl silyl substituted alkyl diaryl phosphine transition metal complexes and their use as homogeneous carbonylation catalysts
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula: wherein Ar is a C6 to C10 aromatic hydrocarbyl radical, Q is a C
10/30/1984
4454353Trihydrocarbyl silyl substituted alkyl diaryl phosphine transition metal complexes and their use as homogeneous hydroformylation-aldolization catalysts
Described is a carbonylation process using novel homogeneous trihydrocarbyl silyl-substituted alkyl diaryl phosphine transition metal complexes of the general formula: wherein Ar is a C6 to C10 aromatic hydrocarbyl radical, Q is a C
06/12/1984
4454070Transition metal-complex compounds and method for making the same
The invention relates to a novel transition metal-complex compounds of the general formula M55 L12 Xp, wherein M is a transition metal of one of the subgroups I, V, VI, VII, or VIII, of the Periodic System of the Elements,...
06/12/1984
1    
 
Sign InRegister
Username  
Password   
forgot password?