The formation of bicyclo[n.2.0]alkan-1-ols from the reaction of the lithium enolates of simple ketones and phenyl vinyl sulfoxideElectronic supplementary information (ESI) available: full experimental details. See http://www.rsc.org/suppdata/ob/b2/b208365e/
作者:Wendy A. Loughlin、Michelle A. McCleary
DOI:10.1039/b208365e
日期:2003.4.14
(+/-)-phenyl vinyl sulfoxide and upon oxidation with MCPBA, the cyclohexanone 4 and monoalkylated cyclobutanone 5 were obtained. The ratio of bicyclo[n.2.0]alkan-1-ol to alkylated products varied with the ketone enolate, conversion of phenyl vinyl sulfoxide, time, temperature and concentration of reaction and the stability and steric strain of the final bicyclo[n.2.0]alkan-1-ol product.
在-78℃的THF中,由环戊酮,环庚酮或环辛酮和LDA生成的烯醇化物在控制的温度,反应时间和浓度条件下与(+/-)-苯基乙烯基亚砜反应。用MCPBA氧化产物混合物后,新的磺酰基双环[3.2.0]庚-1-醇10-12,磺酰基双环[5.2.0]-壬烷-1-醇16-18和磺酰基双环[6.2.0]癸烷-从相应的酮获得1-醇21和22以及烷基化的酮8、9、15、19和20。由环丁酮和LDA在-78℃的THF中生成的烯醇化物与(+/-)-苯基乙烯基亚砜反应,经MCPBA氧化后,得到环己酮4和单烷基化的环丁酮5。双环[n.2.0] alkan-1-ol与烷基化产物的比例随酮烯醇盐的变化而变化,