Multi-Product Classes Obtained from Allylation of α-Halo Ketones with Allylzinc Bromide
作者:Min Zhang、Yuanyuan Hu、Songlin Zhang
DOI:10.1002/chem.200901487
日期:2009.10.19
An efficient, one‐pot synthesis procedure for the preparation of allylic epoxides, aldehydes and homoallylic alcohols (see scheme) has been described. The three industrial products were synthesized by the reaction of allylzinc bromide with α‐halo ketones under non‐catalytic conditions with p‐toluenesulfonic acid and ytterbium triflate as catalysts, respectively. Feasible reaction mechanisms and intermediates
已经描述了一种有效的一锅法合成规程,用于制备烯丙基环氧化物,醛和均烯丙基醇(参见方案)。在非催化条件下,分别用对甲苯磺酸和三氟甲磺酸作为催化剂,通过烯丙基溴化锌与α-卤代酮的反应合成了这三种工业产品。讨论了产生相关产物的可行反应机理和中间体。