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Total Synthesis of Dihydroclerodin from ( R )-(−)-Carvone

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Web黄原酸酯消除也叫Chugaeve(楚加耶夫)消除反应，如图1所示，羟基化合物在碱性条件下和二硫化碳以及碘甲烷反应形成黄原酸酯，然后加热条件下发生分子内消除，经历六元环过渡态，顺式消除，得到烯烃，放出硫氧化碳和硫醇，该反... WebMay 27, 2010 · 简介：本书精选了220种在有机合成中具有重要使用价值的有机人名反应、人名试剂与人名规则。 在有机人名反应和试剂方面，除了原始反应和试剂外，对反应、试剂的适用范围、特点进行精炼点评，并对其改良方法与相关反应进行追踪。 为使本书更具可读性和指导 详细> 所需积分： 10 分 下载次数：147 次 获取积分：页面上方 资料大小: 0 KB … The Chugaev elimination is a chemical reaction that involves the elimination of water from alcohols to produce alkenes. The intermediate is a xanthate. It is named for its discoverer, the Russian chemist Lev Aleksandrovich Chugaev (1873-1922), who first reported the reaction sequence in 1899. In the first step, a xanthate salt is formed out of the alkoxide and carbon disulfide (CS2). … phone number for bedding print