KOtBu-Promoted Three-Component Coupling of Aldehydes and Alkynes: Highly Efficient Synthesis of 1-En-4-yn-3-ols and 2-En-4-yn-1-ols
摘要:
A (KOBu)-Bu-t-promoted three-component coupling reaction of aldehydes and alkynes without a transition-metal catalyst was developed in which the sequential addition/isomerization/addition processes take place in one pot. This reaction could be developed into a straightforward and effective method for rapid access to stereodefined (E)-1-en-4-yn-3-ol and (Z)2-en-4-yn-1-ol compounds.