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C. Wade Downey Smaranda CraciunChristina A. Vivelo Ana M. NeferuCarly J. Mueller Stephanie Corsi 《Tetrahedron letters》2012,53(43):5766-5768
Ethyl propiolate undergoes one-pot three-step thioconjugate addition-oxidation-Diels-Alder cycloaddition when treated with a variety of thiols in the presence of catalytic base, meta-chloroperbenzoic acid, lithium perchlorate, and cyclopentadiene. The reaction of S-aryl thiols is catalyzed by trialkylamines, and the reaction of aliphatic thiols requires catalytic alkoxide base. Yields of the major diastereomer of the conveniently functionalized bicyclic products range from 47% to 81% depending upon the thiol reactant, which compares favorably to yields observed when the entire synthesis is performed step-by-step. 相似文献
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