Direct Synthesis of Terminal Alkynes via Pd-Catalyzed Cross Coupling of Aryl and Alkenyl Halides with Ethynylmetals Containing Zn, Mg, and Sn. Critical Comparison …
E Negishi, M Kotora, C Xu
Index: Journal of Organic Chemistry, , vol. 62, # 25 p. 8957 - 8960
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Citation Number: 94
Abstract
... The Journal of Organic ... 47907-1393. J. Org. Chem. ... 3b,6 We earlier reported a few examples of a direct synthesis of terminal alkynes via Pd-catalyzed cross coupling of HC⋮CZnCl with organic halides, 4 using mainly a cylinder of acetylene as the source of the ethynyl group. ...
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