Reaction of lithium 1-alkoxyeneselenolates with propargylic bromides: One-pot conversion to poly-substituted selenophenes
作者:Takahiro Kanda、Tatsuya Ezaka、Toshiaki Murai、Shinzi Kato
DOI:10.1016/0040-4039(95)00402-x
日期:1995.4
Lithium 1-alkoxyeneselenolates 2 in tetrahydrofuran were characterized by 1H NMR for the first time. Their reaction with propargyl bromide was found to proceed through a propargylic rearrangement to generate allenic selenoic acid O-esters 3, which led to poly-substituted selenophenes in moderate yields under reflux.
四氢呋喃中的1-烷氧基亚硒酸锂2首次通过1 H NMR表征。发现它们与炔丙基溴的反应通过炔丙基重排进行以产生烯丙硒酸O-酯3,其在回流下以中等收率产生多取代的硒烯。