Silylation of hydroxyl groups

Details Silylation of hydroxyl groups Silylation of hydroxyl groups

2005-04-05

2005-04-05

Richter, Johann R. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S460000

Reexamination Certificate

active

06875880

ABSTRACT:
A compound having a non-silanol hydroxyl group and a compound having a silanol group are subjected to dehydrative condensation in the presence of a compound of formula (1), (2) or (3):in-line-formulae description="In-line Formulae" end="lead"?MXn  (1)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?ZaSiR1bR2cR3d  (2)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?CmF2m+1SO3Y  (3)in-line-formulae description="In-line Formulae" end="tail"?wherein M is a metal, n is the valence of metal M, and X is halogen or CmF2m+1SO3; a=1 to 4, b, c and d=0 to 3, a+b+c+d=4, R1, R2and R3are monovalent hydrocarbon groups, Z is halogen or CmF2m+1SO3; Y is H or HW, W is an amine NR4R5R6or a nitrogen-containing heterocyclic compound, R4, R5and R6are H or monovalent hydrocarbyl groups, and m=0 to 10. The method is effective in silylating the hydroxyl group without generating a substantial amount of harmful by-products such as hydrogen chloride or triethylamine hydrochloride.

REFERENCES:
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