1,2,3,4-TETRAALKYL-1-IODO-1,3-BUTADIENE PREPARATION METHOD

摘要

FIELD: organic synthesis. ^ SUBSTANCE: method comprises stirring 1,2-disubstituted acetylenes with n-BuMgCl in diethyl ether in presence of zirconacene dichloride under argon atmosphere at room temperature during 3 h, cooling reaction mass to 0°C and adding I-2 ether solution, and stirring at 20°C for further 3-5 h. ^ EFFECT: increased selectivity of reaction without use of pyrophoric butyllithium. ^ 1 tbl, 10 ex