Catalytic Cyclization of 2,3-Dibromopropionates with Benzyl Azides to Afford 1-Benzyl-1,2,3-triazole-4-carboxylate: The Use of a Nontoxic Bismuth Catalyst
摘要:
We synthesized 1,2,3-triazoles via the cyclization of 2,3-dibromopropionates with benzyl azides. Bismuth chloride is an efficient catalyst, and the reaction is accelerated by weak bases such as sodium acetate. A variety of functional groups are compatible with this catalytic protocol, and it takes advantage of oxygen stable catalyst and substrates because the reactive dibromides are saturated.
Catalytic Cyclization of 2,3-Dibromopropionates with Benzyl Azides to Afford 1-Benzyl-1,2,3-triazole-4-carboxylate: The Use of a Nontoxic Bismuth Catalyst
作者:Hong-bin Sun、Dong Li、Weiping Xie、Xinlin Deng
DOI:10.3987/com-15-13371
日期:——
We synthesized 1,2,3-triazoles via the cyclization of 2,3-dibromopropionates with benzyl azides. Bismuth chloride is an efficient catalyst, and the reaction is accelerated by weak bases such as sodium acetate. A variety of functional groups are compatible with this catalytic protocol, and it takes advantage of oxygen stable catalyst and substrates because the reactive dibromides are saturated.