A vicarious, one-pot synthesis of benzo- and naphthofurans: Applications to the syntheses of stereumene B and paeoveitols
作者:Showkat Rashid、Bilal A. Bhat、Goverdhan Mehta
DOI:10.1016/j.tetlet.2019.03.037
日期:2019.4
deviation during attempted Tanabe γ-lactone annulation on 4-hydroxycyclohexanones has led to a general, one-pot synthesis of benzofurans and naphtho[2,3–b]furans from readily assembled precursors. The utility of this adaptable methodology has been demonstrated through concise syntheses of natural products, stereumene B, paeoveitol D and (±)-paeoveitol.
有趣的是,在尝试在4-羟基环己酮上进行田边γ-内酯环化过程中出乎意料的偏差,导致了从易组装的前体中普遍进行一锅法合成苯并呋喃和萘并[2,3- b ]呋喃的过程。通过天然产物,立体异构体B,paeoveitol D和(±)-paeoveitol的简明合成,已证明了这种适应性方法的实用性。