Boron Trihalide Mediated Alkyne-Aldehyde Coupling Reactions: A Mechanistic Investigation
作者:George W. Kabalka、Min-Liang Yao、Scott Borella、Zhongzhi Wu、Yu-Hong Ju、Travis Quick
DOI:10.1021/jo702493j
日期:2008.4.1
A borontrihalide mediated alkyne-aldehyde coupling reaction leading to stereodefined 1,3,5-triaryl-1,5-dihalo-1,4-pentadienes is described. The study led to the discovery of a direct substitution of hydroxyl groups by stereodefined alkenyl moieties using alkenylboron dihalides. During the investigation, it was also discovered that, at low temperatures, the reaction of BCl3 with alkynes produces monovinylboron