Patent ID: 6156163
Filing Date: 2000-12-05
Classification: C07B,C07C

Abstract:
A compound having the formula:Rf-M(X)(Z)n-Y-R (I)Wherein:R denotes a carbon-containing radical;wherein Rf is a carbon-containing radical having at most 20 carbons of formula:(R.sub.2 -(C.XI..sub.2).sub.p -)(R.sub.1 -(C.XI..sub.2).sub.m -)CF-wherein:R.sub.1 and R.sub.2, which are similar or different, denote fluorine, chlorine or a carbon-containing radical;m is zero or an integer chosen within the closed range from 0 to 12;p is zero or an integer chosen within the closed range from 0 to 12; and.XI., which are similar or different, denote a perhalogenated radical, a chlorine or a fluorine atom; with the condition that when m or p are equal to zero, R.sub.1 or R.sub.2 are electron-withdrawing;n denotes zero or 1;M denotes a carbon or a chalcogen heavier than oxygen;X, and Z, which are similar or different, denote a chalcogen atom; andY denotes a sulphur or a selenium atom.