PHOSPHONITES, THEIR USE AS LIMITATION IN TRANSITIONAL METHODS, COMPLEX AND PROCEDURES FOR THE PRODUCTION OF NITRILES

摘要

The invention relates to phosphinites I of formulae (1) or (2), in which R1, R2, R5, R6, R7, R8, R9 independently represent hydrogen, an alkyl or alkylene group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms; R3 is H or methyl; R4 is i-propyl or t-butyl; X is F, Cl or CFSUB3 /SUBand n is 1 or 2.