Patent ID: 7078550

Claim:
A process for the preparation of a compound of formula wherein a phenol or naphthol compound is etherified with an allyl halide (1st step), the resulting alkenyl phenyl ether compound is rearranged to form an alkenylphenyl compound (2nd step), and a silane compound that contains at least one Si—H bond is added to that compound according to the following Scheme: wherein R 1 is hydrogen; halogen; hydroxy; C 1 –C 20 alkyl; C 3 –C 12 cycloalkyl; C 1 –C 20 alkoxy; trifluoromethyl; pentafluoroethyl; mono- or di-C 1 –C 5 alkylamino; hydroxy-C 1 –C 5 alkyl; or phenyl, phenyl-C 1 –C 20 alkyl, phenoxy, phenyl-C 1 –C 20 alkoxy, naphthyl or naphthyl-C 1 –C 20 alkyl each unsubstituted or substituted by C 1 –C 5 alkyl, C 3 –C 12 cycloalkyl, C 1 –C 5 alkoxy, C 3 –C 12 cycloalkoxy, halogen, oxo, carboxy, carboxy-C 1 –C 7 alkyl ester, carboxy-C 3 –C 12 cycloalkyl ester, cyano, trifluoromethyl, pentafluoroethyl, amino N,N-mono- or di-C 1 –C 20 alkylamino or by nitro; R 2 , R 3 and R 4 are each independently of the others hydrogen; C 1 –C 20 alkyl; or C 3 –C 12 -cycloalkyl; R 5 , R 6 and R 7 are each independently of the others C 1 –C 20 alkyl; C 5 –C 10 aryl; C 1 –C 20 alkoxy; phenyl-C 1 –C 20 alkyl; phenyl-C 1 –C 20 alkoxy, C 2 –C 5 alkenyl; —O—Si—(C 1 –C 5 alkyl) 3 ; or —O—Si—(C 1 –C 5 alkyl) 2 -O—Si(C 1 –C 5 alkyl) 3 and n is 0 or 1, there not being included compounds of formula (1a) wherein R 1 , R 2 , R 3 and R 4 are hydrogen and R 5 , R 6 and R 7 are simultaneously methyl or ethyl.