作者:Kenji Naganuma、Takayuki Kawashima
DOI:10.1016/s0022-328x(01)01215-3
日期:2002.2
Pentacoordinate thiasiliranides. K+, 18-crown-6, (-C6H4-2-C(CF3)(2)O-}SiPhi-CH(CH2-t-Bu)S-] were synthesized by deprotonation of the corresponding alpha-mercaptoalkylsilanes, -C6H4-2-C(C-F-3)(2)O-}SiPh-CH(CH2-t-Bu)SH} with KH in the presence of 18-crown-6. X-ray crystallographic analysis of cis-thiasiliranide showed an exceptionally small Si-C-S angle (87) as a result of significant intramolecular Si-S interaction. Hydrolysis of the pentacoordinate thiasiliranides gave 2,2-dimethylbutanethiol, while the reaction with HCl afforded the alpha-mercaptoalkylsilanes. (C) 2002 Elsevier Science B.V. All rights reserved.