Patent ID: 8357816

Claim:
A compound of formula (II): where R 2 , R 3 , R 4 and R 5 are each, independently, hydrogen, halogen, CH 3 , CF 3 or OCF 3 ; R 6 is (CHR 10 )(CR 11 R 12 ) r Si(R 13 )(R 14 )(R 15 ); r is 1, 2 or 3; R 10 is C 1-3 alkyl or C 1-3 haloalkyl; and when each R 11 and each R 12 is, independently, chosen from hydrogen, halogen, C 1-3 alkyl and C 1-3 haloalkyl; or R 10 and R 11 on adjacent carbon atoms or two R 11 on adjacent carbon atoms may together be a double bond; R 13 and R 14 are each, independently, methyl or ethyl; and R 15 is C 1-6 alkyl, C 1-4 alkoxy(C 1-4 )alkyl, C 1-3 haloalkyl, C 2-6 alkenyl or C 1-6 alkoxy; provided that R 6 is such that its total number of carbon atoms is 6-13, its total number of halogen atoms is 0-4 and its total number of heteroatoms is 0-3.