The first example of the [4+2] cycloaddition reaction of silylketenes with 1,3-dienes: A convenient preparation of 2-pyranones and isochromenes
作者:Tatsuya Ito、Toyohiko Aoyama、Takayuki Shioiri
DOI:10.1016/0040-4039(93)88111-u
日期:1993.10
Silylketenes easily undergo the [4+2] cycloaddition reaction with electron-rich 1,3-dienes and o-quinodimethanes to give the corresponding 2-pyranones and isochromenes, respectively.
甲硅烷基烯酮容易与富含电子的1,3-二烯和邻喹二甲烷进行[4 + 2]环加成反应,分别得到相应的2-吡喃酮和异色酮。