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1. US5302738 - Chiral phosphines

Office
United States of America
Application Number 07949878
Application Date 13.11.1992
Publication Number 5302738
Publication Date 12.04.1994
Grant Number 5302738
Grant Date 12.04.1994
Publication Kind A
IPC
C07F 9/52
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P-C bonds
50Organo-phosphines
52Halophosphines
C07F 9/40
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P-C bonds
38Phosphonic acids ; Thiophosphonic acids
40Esters thereof
C07F 9/38
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P-C bonds
38Phosphonic acids ; Thiophosphonic acids
C07F 9/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
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9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P-C bonds
38Phosphonic acids ; Thiophosphonic acids
42Halides thereof
C07F 9/50
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P-C bonds
50Organo-phosphines
CPC
C07F 9/5027
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07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P—C bonds
50Organo-phosphines
5027Polyphosphines
C07F 9/4025
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P—C bonds
38Phosphonic acids RP(=O)(OH)2; Thiophosphonic acids ; , i.e. RP(=X)(XH)2 (X = S, Se)
40Esters thereof
4003the acid moiety containing a substituent or a structure which is considered as characteristic
4025Esters of poly(thio)phosphonic acids
C07F 9/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
9Compounds containing elements of Groups 5 or 15 of the Periodic System
02Phosphorus compounds
28with one or more P—C bonds
38Phosphonic acids RP(=O)(OH)2; Thiophosphonic acids ; , i.e. RP(=X)(XH)2 (X = S, Se)
42Halides thereof
Applicants Hoffmann-La Roche Inc.
Inventors Foricher Joseph
Heiser Bernd
Schmid Rudolf
Agents Gould George M.
Epstein William H.
Priority Data 00079491 15.03.1991 CH
Title
(EN) Chiral phosphines
Abstract
(EN)

Novel, racemic and optically active phosphorus compounds of the formula ##STR1## wherein R signifies lower alkyl, lower alkoxy or protected hydroxy, R.sup.1 signifies lower alkoxy, phenoxy, benzyloxy, chlorine or bromine, R.sup.2 stands for lower alkyl or lower alkoxy and n represents the number 0, 1 or 2, are described. These compounds are valuable intermediates in the manufacture of not only known, but also novel diphosphine ligands.