Brook Rearrangement as a Trigger for the Ring Opening of Strained Carbocycles
作者:Fa-Guang Zhang、Guillaume Eppe、Ilan Marek
DOI:10.1002/anie.201510094
日期:2016.1.11
derivatives as unique diastereoisomers. Upon warming of the reaction mixture to room temperature, a Brookrearrangement proceeded with inversion of configuration to provide ready access to δ‐ketoamides possessing a quaternary carbon center with high enantiomeric ratios through selective CC bond cleavage of the ring.
α-Sulfenylation of acylsilanes and aldehydes with N-(phenylthio)succinimide
作者:Chih-Hao Huang、Kang-Shyang Liao、Surya Kanta De、Yeun-Min Tsai
DOI:10.1016/s0040-4039(00)00515-3
日期:2000.5
The reactions of acylsilanes with N-(phenylthio)succinimide in the presence of p-toluenesulfonic acid in acetonitrile give alpha-sulfenylated acylsilanes in good yields. Aldehydes with alpha-alkyl substituent afford moderate yields of alpha-sulfenylated products under the same conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.
Preparation of α-silyl- or α,α-bis(silyl)-substituted alkylcopper reagents and their synthetic use
Treatment of chlorobis(methyldiphenylsilyl)methyllithium with various alkyl and aryl Grignard reagents and CuCN center dot 2LiCl afforded 1,1-disilylalkylcopper species. The aerobic oxidation of the resulting copper reagents provided a variety of acylsilanes in good yields. Meanwhile, treatment of dichloro(methyldiphenylsilyl)methyllithum with Bu2CuLi center dot LiCN provided 1-cyano-1-silylalkylcopper species via consecutive double 1,2-migration of alkyl and cyano groups. (c) 2005 Elsevier Ltd. All rights reserved.
Larson, Gerald L.; Soderquist, John A.; Claudio, Mirna Rivera, Synthetic Communications, 1990, vol. 20, # 8, p. 1095 - 1104
作者:Larson, Gerald L.、Soderquist, John A.、Claudio, Mirna Rivera