A novel and efficient method is proposed for the synthetic preparation of a long-chain alkynyl compound in a one-pot reaction without isolating the intermediate from the reaction mixture. The inventive method comprises the steps of: (a) a Grignard coupling reaction of an .omega.-halogeno-1-alkynyl magnesium halide compound of the general formula X.sup.1 MgC.tbd.C(CH.sub.2).sub.n X.sup.2, in which X.sup.1 is a halogen atom, X.sup.2 is an atom of Br or I and n is 3 to 10, and a Grignard reagent of the general formula RMgX.sup.1, in which R is a group selected from the class consisting of alkyl groups, alkenyl groups, alkynyl groups, alkapolyenyl groups, aryl groups and hydrocarbon groups having protected hydroxy group to give an intermediate compound of the general formula X.sup.1 MgC.tbd.C(CH.sub.2).sub.n R; (b) subjecting the intermediate compound to a reaction with a reactant selected from the class consisting of C.sub.2 -synthons, C.sub.1 -synthons and chlorosilane compounds having reactivity with the intermediate compound at the X.sup.1 Mg-terminal; and (c) hydrolyzing the reaction product obtained in step (b).
提出了一种新颖高效的方法,用于在一锅反应中合成长链炔基化合物,而无需从反应混合物中分离中间体。该创新方法包括以下步骤:(a)将一般式X1MgC.tbd.C(
CH2)nX2的ω-卤代1-炔基
镁卤化物化合物与一般式为RMgX1的Grignard试剂进行Grignard偶联反应,其中R是从烷基、烯基、炔基、烯基烷基、芳基和具有受保护羟基的碳氢基组成的类,X1是卤素原子,X2是Br或I原子,n为3到10,以得到一般式为X1MgC.tbd.C( )nR的中间体化合物;(b)将中间体化合物与C2合成物、C1合成物和在X1Mg端具有反应性的
氯硅烷化合物之一进行反应;(c)
水解步骤(b)中得到的反应产物。