Synthesis of long-chain terminal diacetylenic compounds
作者:L. G. Fedenok、O. M. Usov、M. S. Shvartsberg
DOI:10.1007/bf00714431
日期:1995.8
Cleavage of long-chain 2-methyl-3,5-alkadiyne-2-ols in anhydrous benzene in the presence of KOH (Favorsky retroreaction) is accompanied by migration of the triple bonds and it affords 2,4-alkadiynes. Proton-donor additives (alcohol or water) completely suppress the isomerization process and enable preparation of terminal acetylenes in high yields.