Pd-Catalyzed Three-Component Coupling of <i>N</i>-Tosylhydrazone, Terminal Alkyne, and Aryl Halide
作者:Lei Zhou、Fei Ye、Yan Zhang、Jianbo Wang
DOI:10.1021/ja105762n
日期:2010.10.6
A Pd-catalyzed three-component reaction of N-tosylhydrazone, terminalalkyne, and aryl halide follows a mechanism involving a sequence of Pd carbene migratory insertion-transmetalation-reductive elimination, leading to the formation of one sp(2)-sp(3) C-C bond and one sp-sp(3) C-C bond.
Pd 催化的 N-甲苯磺酰腙、末端炔烃和芳基卤化物的三组分反应遵循涉及 Pd 卡宾迁移插入-金属转移-还原消除序列的机制,导致形成一个 sp(2)-sp(3) ) CC 键和一个 sp-sp(3) CC 键。
Stereospecific Pd-Catalyzed Intermolecular C(sp<sup>3</sup>)-C(sp) Cross-Coupling of Diarylmethyl Carbonates and Terminal Alkynes Under Base-Free Conditions
作者:Sho Tabuchi、Koji Hirano、Masahiro Miura
DOI:10.1002/chem.201503647
日期:2015.11.16
A palladium‐catalyzed intermolecular decarboxylative C(sp3)–C(sp) coupling of diarylmethyl carbonates and terminalalkynes has been developed. The reaction proceeds smoothly under external base‐free conditions to deliver the corresponding alkynylated diarylmethanes with the liberation of CO2 and MeOH as the sole byproducts. Moreover, enantioenriched diarylmethyl carbonates are stereospecifically converted