1,3-Dipolar cycloaddition of diazoacetate compounds to terminal alkynes promoted by Zn(OTf)2: an efficient way to the preparation of pyrazoles
Tetrahedron Letters（2009）
摘要
A series of pyrazoles were prepared in good yields via 1,3-dipolar cycloaddition of diazoacetate compounds to terminal alkynes promoted by Zn(OTf)2 under mild conditions. It was supposed that the reaction was through the intermediate of Zn alkynilide.
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