Patent ID: 6875880
Filing Date: 2005-04-05
Classification: C07F

Abstract:
1. A method for silylating a hydroxyl group, comprising subjecting a compound having a non-silanol hydroxyl group and a compound having a silanol group to dehydrative condensation in the presence of a compound of the following general formula (1), (2) or (3): wherein M is a metal having a valence of at least 1, n is an integer equal to the valence of metal M, and X is a halogen or a fluorinated sulfonate represented by C m F 2m+1 SO 3 wherein m is an integer of 0 to 10, wherein a is an integer of 1 to 4, b, c and d each are an integer of 0 to 3, satisfying a+b+c+d=4, each of R 1 , R 2 and R 3 which may be the same or different is a substituted or unsubstituted monovalent hydrocarbyl group of 1 to 20 carbon atoms, Z is a halogen or a fluorinated sulfonate represented by C m F 2m+1 SO 3 wherein m is an integer of 0 to 10, wherein Y is hydrogen or a cation represented by HW, W is an amine represented by NR 4 R 5 R 6 or a substituted or unsubstituted, nitrogen-containing heterocyclic compound of 1 to 20 carbon atoms, R 4 , R 5 and R 6 each are hydrogen or a substituted or unsubstituted monovalent hydrocarbyl group of 1 to 20 carbon atoms, and m is an integer of 0 to 10.