作者:Robert S. Lewis、Christopher J. Garza、Ann T. Dang、Te Kie A. Pedro、William J. Chain
DOI:10.1021/acs.orglett.5b00972
日期:2015.5.1
which ketone or ester enolates and ortho-quinone methides (o-QMs) are generated in situ in a single reaction flask from silylated precursors under the action of anhydrous fluoride is reported. The reaction partners are joined to give a variety of β-(2-hydroxyphenyl)-carbonyl compounds in 32–94% yield in a single laboratory operation. The intermediacy of o-QMs is supported by control experiments utilizing
据报道,在无水氟化物的作用下,由甲硅烷基化的前体在一个反应烧瓶中原位生成酮或酯的烯醇化物和邻-醌甲基化物(o -QMs)。通过一次实验室操作,即可将反应伙伴连接起来,以32-94%的收率得到各种β-(2-羟苯基)-羰基化合物。o -QM的中间性通过使用烯醇盐前体和常规烷基卤化物作为竞争性烷基化剂的控制实验以及由未恢复芳香族体系的共轭物加成分离的1,5-二羰基产物的支持得到支持。