Diastereoselective Free Radical Halogenation, Azidation, and Rearrangement of β-Silyl Barton Esters
作者:Douglas S. Masterson、Ned A. Porter
DOI:10.1021/ol0268182
日期:2002.11.1
[reaction: see text] Barton esters of beta-silylcarboxylic acids were decomposed by photolysis alone in organic solvents or in the presence of ethanesulfonyl azide or bromotrichloromethane. Products of the reaction, beta-silylthiopyridyl ethers, beta-silyl azides, or alkenes, were formed with significant control of stereochemistry.
[反应:见正文]β-甲硅烷基羧酸的Barton酯仅在有机溶剂中或在乙磺酰叠氮化物或溴代三氯甲烷的存在下通过光解而分解。反应产物,β-甲硅烷基硫代吡啶基醚,β-甲硅烷基叠氮化物或烯烃,在立体化学的显着控制下形成。