The dialk-2-enylzinc compounds I–III react slowly at 20 to 50°C by addition of the ZnC bond to the CC bond of an alk-2-enyl group to give oligomers from which the alkenes XIII–XV are released on hydrolysis. For I–III homolytic cleavage of the ZnCallyl bond, followed by coupling of the allyl radicals to give the alkadienes V–VII, IX and XI predominates above 50°C. IV decomposes mainly homolytically
二烯基-2-烯基
锌化合物I–III在20至50°C的条件下,通过将ZnC键添加至烷-2-烯基的CC键上而缓慢反应,从而生成低聚物,烯烃XIII–XV将从中
水解释放。对于I–III均会裂解ZnC烯丙基键,然后再进行烯丙基的偶合,从而在高于50°C的温度下,以链烷二烯V–VII,IX和XI为主。IV即使在20℃下也主要均匀分解。