Synthesis of secondary propargyl alcohols from aromatic and heteroaromatic aldehydes and acetylene in the system KOH-H2O-DMSO
摘要:
Ethynylation of aromatic and heteroaromatic aldehydes with acetylene under atmospheric pressure in the catalytic system KOH-H2O-DMSO (aldehyde-KOH molar ratio 1 : 2, -5 to -7A degrees C, 3 h) gave secondary propargyl alcohols in 46-67% yield.