Stereoselective Synthesis of 1,3-Enynylstannanes via Palladium Catalyzed Cross-Coupling Reactions of (Z)-α-Bromovinylstannanes
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摘要:
Based on the different reactivity of stannyl and bromo groups, (Z)-α-bromovinylstannanes can undergo the cross-coupling reaction with alkynyl Grignard reagents in the presence of tetrakis(triphenylphosphine)palladium(0)catalyst in THF at room temperature to afford stereoselectively 1,3-enynylstannanes in good yields.