Boron-Templated Dimerization of Allylic Alcohols To Form Protected 1,3-Diols via Acid Catalysis
作者:S. Hadi Nazari、Kelton G. Forson、Erin E. Martinez、Nicholas J. Hansen、Kyle J. Gassaway、Nathan M. Lyons、Karissa C. Kenney、Gabriel A. Valdivia-Berroeta、Stacey J. Smith、David J. Michaelis
DOI:10.1021/acs.orglett.9b03760
日期:2019.12.6
boron-templated dimerization of allylic alcohols that generates a 1,3-diol product with two stereogenic centers in high yield and diastereoselectivity. This acid-catalyzed reaction is achieved via in situ formation of a boronic ester intermediate that facilitates selective cyclization and formation of a cyclic boronic ester product. High yields are observed with a variety of allylic alcohols, and mechanistic studies
我们报道了史无前例的烯丙基醇的硼模板二聚反应,生成具有两个高产和非对映选择性立体中心的1,3-二醇产物。该酸催化的反应是通过原位形成硼酸酯中间体实现的,该中间体促进选择性环化和形成环状硼酸酯产物。使用各种烯丙醇可观察到高收率,并且机理研究证实了硼作为反应模板的作用。