作者:Estela Álvarez、Olalla Nieto Faza、Carlos Silva López、Manuel A. Fernández-Rodríguez、Roberto Sanz
DOI:10.1002/chem.201502174
日期:2015.9.7
A cascade reaction of indoles with propargylic diols involving an unprecedented metal‐free 1,2‐indole migration onto an alkyne was carried out. DFT calculations support a mechanism consisting of a concerted nucleophilic attack of the indole nucleus with loss of water, followed by the 1,2‐migration and subsequent Nazarov cyclization. This Brønsted acid‐catalyzed protocol affords indole‐functionalized
进行了吲哚与炔丙二醇的级联反应,涉及到前所未有的无金属1,2-吲哚迁移至炔烃。DFT计算支持一种机制,该机制包括对吲哚核的协同亲核攻击和失水,然后进行1,2-迁移和随后的Nazarov环化。此布朗斯台德酸催化方案可高产率提供吲哚官能化的苯并富勒烯衍生物。