Abstract
Pd-catalyzed Kumada coupling reaction of tetrachloroethylene and Grignard reagents was effective for the formation of diarylacetylenes as simple and convenient reaction, in which diarylacetylenes were successfully obtained in up to 82% yields and 14 examples were demonstrated. In addition, the current reaction was applicable for the straightforward synthesis of tri and tetra-substituted arylethylenes in good yields.
Graphical Abstract
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