The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1992
Filed:
Jul. 29, 1991
Applicant:
Inventors:
Sylvain Juge, Orsay, FR;
Jean-Pierre Genet, Fontenay-Aux-Roses, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
558177 ; 558 87 ; 558194 ;
Abstract
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 R.sup.1 to R.sup.7, the same or different, are H or aliphatic, cycloaliphatic and/or arylic hydrocarbon radicals, possibly substituted, R.sup.3 not existing when Q is oxygen. This product is used as an intermediate in the preparation of different derivatives of phosphinous acid.