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Coming at them from another angle: In a fresh approach to the synthesis of conjugated alkynes, the palladium‐catalyzed cross‐coupling of N‐tosylhydrazones or diazoesters with terminal alkynes provided the desired enyne products with excellent stereoselectivity (see scheme; Ts=p‐toluenesulfonyl). The reaction is proposed to involve an unprecedented alkynyl migratory insertion of a palladium carbene...
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