Copper(I)-Catalyzed Three-Component Coupling of<i>N</i>-Tosylhydrazones, Alkynes and Azides: Synthesis of Trisubstituted 1,2,3-Triazoles
作者:Zhikun Zhang、Qi Zhou、Fei Ye、Ying Xia、Guojiao Wu、Mohammad Lokman Hossain、Yan Zhang、Jianbo Wang
DOI:10.1002/adsc.201500377
日期:2015.7.6
The copper(I)‐catalyzed three‐component reaction of N‐tosylhydrazones, terminal alkynes and azides has been realized in an efficient and regioselective manner. This reaction constitutes a convenient method for the synthesis of 1,4,5‐trisubstituted 1,2,3‐triazoles from simple starting substrates. Mechanistically, the reaction involves the trapping of the copper(I) triazolide intermediate to form a copper
Synthesis of Benzyltributylstannanes by the Reaction of <i>N</i>-Tosylhydrazones with Bu<sub>3</sub>SnH
作者:Di Qiu、Shuai Wang、He Meng、Shengbo Tang、Yan Zhang、Jianbo Wang
DOI:10.1021/acs.joc.6b02639
日期:2017.1.6
An efficient stannylation process with Ntosylhydrazones or directly with carbonyl compounds has been developed. A series of functionalized benzyl-and alkyltributylstannanes can be synthesized in moderate to good yields under transition-metal-free conditions. Tandem transformations involving stannylation/Stille cross-coupling reaction have been carried out without purification of the benzyltributylstannane intermediates to afford a series of diarylmethane derivatives.