The Epoxy-Ramberg–Bäcklund Reaction (ERBR): A Sulfone-Based Method for the Synthesis of Allylic Alcohols
作者:Paul Evans、Paul Johnson、Richard J. K. Taylor
DOI:10.1002/ejoc.200500956
日期:2006.4
tri-substituted allylic alcohols, on treatment with base. Modification of this method enabled the preparation of enantio-enriched allylic alcohols following the diastereoselective epoxidation of enantio-enriched vinyl sulfones that were accessed efficiently from the chiral pool. The scope, optimisation and limitations of the ERBR as a method for the preparation of allylic alcohols are discussed. (©
概述了环氧-Ramberg-Backlund 反应 (ERBR),其中 α,β-环氧砜在用碱处理后转化为一系列单、二和三取代的烯丙醇。对这种方法的改进使得能够在对映体富集的乙烯基砜进行非对映选择性环氧化后制备对映体富集的烯丙醇,这些乙烯砜可有效地从手性池中获得。讨论了 ERBR 作为烯丙醇制备方法的范围、优化和局限性。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)