Synthesis of tetrahydro-β-carbolines from 2-indolylmethyl azides and propargylic alcohols
作者:Haiting Yin、Qin Ma、Yushan Wang、Xiaoxia Gu、Zhijun Feng、Yunjun Wu、Ming Wang、Shaoyin Wang
DOI:10.1039/d1ra03022a
日期:——
A facile and efficient route to tetrahydro-β-carbolines from 2-indolylmethyl azides and propargylic alcohols via acid-catalyzed dehydrative annulation reactions is described. This reaction proceeds through a cascade sequence of Friedel–Crafts-type alkylation followed by intramolecular “Click” reaction, involving the formation of multiple chemical bonds in a single operation with excellent atom-economy
Efficient solvent-free synthesis of tertiary propargylic alcohols from arylacetylenes and ketones promoted by tert-BuOK
作者:Shufeng Chen、Fang Yuan、Haiying Zhao、Baoguo Li
DOI:10.1007/s11164-012-0765-9
日期:2013.7
A mild and efficient method for the alkynylation of arylacetylenes with ketones promoted by tert-BuOK under solvent-free conditions was developed. The present green synthesis was applicable to many kinds of aromatic and aliphatic ketones providing good to excellent yields of tertiary propargylic alcohols. A mild and efficient method for the alkynylation of arylacetylenes with ketones promoted by tert-BuOK under solvent-free conditions was developed. The present green synthesis was applicable to many kinds of aromatic and aliphatic ketones providing good to excellent yields of tertiary propargylic alcohols.