Synthesis of alkynyl cyclopropa[c]coumarins via propargyl sulfonium salts as C1 synthons
Lavanya Chandrasekar,
Yun-Zhen Hsieh,
Hao-Tse Chou
et al.
Abstract:Herein, we firstly demonstrate an exclusive approach for the preparation of alkynyl cyclopropa[c]coumarin derivatives with high-yield utilizing propargyl sulfonium salts as C1 synthon. Compared with Br-, ClO4- used as the...
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