A facile synthesis of fluorinated alkoxytrimethylsilanes using 1-methylimidazole as an acid scavenger
摘要:
Fluorinated alkoxytrimethylsilanes (R1CH2OSiMe3), potential candidates for the third-generation cleaning agents, were synthesized in high yields over 95% from the reaction of chlorotrimethylsilane and fluorinated alcohol (R1CH2OH) in the presence of 1-methylimidazole. Elemental and H-1 NMR spectroscopic analysis showed that the reaction proceeds through the formation of an intermediate, 3-methyl-1-trimethylsilylimidazolium chloride. (c) 2006 Elsevier B.V. All rights reserved.
Polyfluoroalkoxy trimethylsilanes R(f)CH(2)OSi(CH3)(3) (from the alcohols R(f)CH(2)OH and HMDS), react with Ph(3)PICl (from ICl and Ph(3)P) eliminating (CH3)(3)SiCl. Pyrolysis or the residues gives Ph(3)PO and pure iodides R(f)CH(2).
Yakubovich,A.Ya. et al., Journal of general chemistry of the USSR, 1967, vol. 37, p. 1312 - 1316
作者:Yakubovich,A.Ya. et al.
DOI:——
日期:——
KROLEVETS, A. A.;POPOV, A. G., ZH. OBSHCH. XIMII, 1983, 53, N 11, 2646-2647