申请人:——
公开号:US20030139619A1
公开(公告)日:2003-07-24
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):
MX
n
(1)
Z
a
SiR
1
b
R
2
c
R
3
d
(2)
C
m
F
2m+1
SO
3
Y (3)
wherein M is a metal, n is the valence of metal M, and X is halogen or C
m
F
2m+1
SO
3
; a=1 to 4, b, c and d=0 to 3, a+b+c+d=4, R
1
, R
2
and R
3
are monovalent hydrocarbon groups, Z is halogen or C
m
F
2m+1
SO
3
; Y is H or HW, W is an amine NR
4
R
5
R
6
or a nitrogen-containing heterocyclic compound, R
4
, R
5
and R
6
are 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.
在化合物1、2或3的存在下,具有非硅醇羟基的化合物和具有硅醇基的化合物进行脱水缩合反应:MXn(1)ZaSiR1bR2cR3d(2)CmF2m+1SO3Y (3),其中M为金属,n为金属M的价,X为卤素或CmF2m+1SO3;a=1至4,b、c和d=0至3,a+b+c+d=4,R1、R2和R3为一价烃基,Z为卤素或CmF2m+1SO3;Y为H或HW,W为胺NR4R5R6或含氮杂环化合物,R4、R5和R6为H或一价烃基,m=0至10。该方法可有效硅基化羟基而不产生大量有害副产物,如氢氯酸或三乙胺盐酸盐。