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.
在 KOH 存在下,长链 2-甲基-3,5-链二炔-2-醇在无水苯中的裂解(Favorsky 逆反应)伴随着三键的迁移,得到 2,4-链二炔。质子供体添加剂(酒精或水)完全抑制异构化过程,并能够以高收率制备末端乙炔。