Palladium-Catalyzed Desulfitative Cross-Coupling of Arylsulfonyl Hydrazides with Terminal Alkynes: A General Approach toward Functionalized Internal Alkynes
作者:Liang-Wei Qian、Mengli Sun、Jianyu Dong、Qing Xu、Yongbo Zhou、Shuang-Feng Yin
DOI:10.1021/acs.joc.7b00899
日期:2017.7.7
A palladium-catalyzed Sonogashira-type coupling between arylsulfonyl hydrazides and terminal alkynes via Ar(C)–S bond cleavage is disclosed, which enables the general synthesis of functionalized internal alkynes, especially the Br-substituted ones, in good to excellent yields under acid- and base-free conditions.
公开了一种通过Ar(C)-S键裂解在芳基磺酰肼与末端炔烃之间进行钯催化的Sonogashira型偶联,它能够在酸性条件下良好地合成优良的内在炔烃,特别是Br取代的炔烃。 -和无基础条件。