Method for producing organosilicon compound having α, β-unsaturated carboxylic acid group, composition containing the compound, and optically anisotropic layer

摘要

Process for the production of organosilicon compounds that contain alpha , beta -unsaturated carboxylic acid group comprises reaction of an organosilicon compound containing Si-H bonds, with an olefinically unsaturated compound in the presence of a platinum catalyst followed by elimination. A process for the production of organosilicon compounds (I), that contain alpha , beta -unsaturated carboxylic acid groups of formula (1), comprises (A) reaction of an organosilicon compound (II), that contains Si atoms directly bonded to H atoms, with an olefinically unsaturated compound, that contains terminal double or triple bonds of formula (2) in the presence of a platinum metal or compound catalyst to form an organosilicon compound (III) that contains groups of formula (3) and (B) elimination of H-Z from the organosilicon compound (III). Independent claims are included for: (i) a composition (IV) containing the organosilicon compound (I) (ii) a polymer prepared from the organosilicon compound (I) or the composition (IV); and (iii) an optically anisotropic layers prepared by orientation and polymerization of the organosilicon compound (I) or the composition (IV). -A-O-C(O)-CR=CH2 (1) OMEGA -O-C(O)-CRH-CH2Z (2) -A-O-C(O)-CRH-CH2Z (3) A = a divalent organic group; OMEGA = a monovalent organic group having a terminal double or triple bond; R = H or methyl; Z = Cl, I, Br or 4-methyltoluene sulfonyl