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Stereoselective DABCO-Catalyzed Synthesis of (E)-α-Ethynyl-α,β-Unsaturated Esters from Allenyl Acetates

Yongsik Choe and Phil Ho Lee*

*National Research Laboratory for Catalytic Organic Reaction, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea, Email:

Y. Choe, P. H. Lee, Org. Lett., 2009, 11, 1445-1448.

DOI: 10.1021/ol9001703


(E)-α-Ethynyl-α,β-unsaturated esters were prepared in good yields from allenyl acetates by treatment with 10 mol % DABCO in DMF at room temperature.

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Key Words

α,β-unsaturated esters, terminal alkynes, enynes

ID: J54-Y2009-0930