Synthesis of Spirocyclic Indolines by Interruption of the Bischler–Napieralski Reaction
作者:Jonathan William Medley、Mohammad Movassaghi
DOI:10.1021/ol401465y
日期:2013.7.19
The development of a versatile method for the synthesis of spirocyclic pyrrolidinoindolines is discussed. Treatment of N-acyltryptamines with trifluoromethanesulfonic anhydride–2-chloropyridine reagent combination affords highly persistent spiroindoleninium ions that are subject to intra- and intermolecular addition at C2 by nucleophiles.
讨论了合成螺环吡咯烷二氢吲哚的通用方法的开发。用三氟甲磺酸酐-2-氯吡啶试剂组合处理N-酰基色胺可得到高度持久的螺吲哚鎓离子,这些离子会被亲核试剂在 C2 处进行分子内和分子间加成。