Substitution reactions of 2-benzenesulphonyl cyclic ethers with carbon nucleophiles
作者:Dearg S. Brown、Maurizio Bruno、Raymond J. Davenport、Steven V. Ley
DOI:10.1016/s0040-4020(01)81323-5
日期:1989.1
Direct substitution of 2-benzenesulphonyl cyclic ethers was studied using a variety of carbon nucleophiles. These nucleophiles included organozinc reagents (derived from aryl, vinyl and alkynyl Grignard reagents) or silyl enol ethers, silyl ketene acetals, allylsilanes and trimethylsilylcyanide in the presence of aluminum chloride. A general selectivity for the formation of the trans-product was observed
使用多种碳亲核试剂研究了2-苯磺酰基环醚的直接取代。这些亲核试剂包括有机锌试剂(衍生自芳基,乙烯基和炔基格利雅试剂)或甲硅烷基烯醇醚,甲硅烷基乙烯酮缩醛,烯丙基硅烷和三甲基甲硅烷基氰化物。使用6-取代的砜观察到形成反式产物的一般选择性。