Iodobenzene-Catalyzed Intramolecular Oxidative Cyclization Reactions of δ-Alkynyl β-Ketoesters
作者:Arantxa Rodríguez、Wesley J. Moran
DOI:10.1021/ol200471w
日期:2011.5.6
Iodobenzene is shown to catalyze the 5-exo-dig cyclization of δ-alkynyl β-ketoesters under oxidative conditions that generate hypervalent iodine species in situ. The cyclopentane products contain adjacent quaternary and tertiary stereocenters which are generated with excellent diastereoselectivity.
在氧化条件下,碘苯可催化δ-炔基β-酮酸酯的5- exo - dig环化反应,该氧化条件可在原位生成高价碘。环戊烷产物包含以优异的非对映选择性而产生的相邻的四级和三级立体中心。