Acid-catalyzed cyclization of vinylsilanes bearing a hydroxy group. Benzyldimethylsilyl group as an effective promoter and novel hydroxy surrogate
作者:Katsukiyo Miura、Takeshi Hondo、Tatsuyuki Takahashi、Akira Hosomi
DOI:10.1016/s0040-4039(00)00091-5
日期:2000.3
A benzyldimethylsilyl (BnDMS) group was found to effectively enhance the reactivity of vinylsilanes toward the acid-catalyzed intramolecular addition of a hydroxy group in comparison with a dimethylphenylsilyl group. The BnDMS group of the resultant cyclized products could be easily converted to a hydroxy group by the action of TBAF-H2O2-KHCO3. (C) 2000 Elsevier Science Ltd. All rights reserved.