Regio-and Stereoselective Ring Opening of Epoxides with Sodium Phenylselenide under Phase Transfer Conditions
作者:Reginaldo Bezerra dos Santos、Valdemar Lacerda Junior、Paulo Roberto Zanotto、Timothy John Brocksom、Ursula Brocksom
DOI:10.3184/030823408x282659
日期:2008.1
and trisubstituted epoxides with the phenylselenide anion under PTC conditions provides a simple, mild and efficient method for preparation of β-hydroxy phenylselenides with high regio- and stereoselectivity in yields from 67 to 98%. The reactions are carried out in aqueous NaOH/ THF using aminoiminomethanesulfinic acid (thiourea dioxide, TDO) to generate sodium phenylselenide from diphenyldiselenide
在 PTC 条件下,多种单、二和三取代环氧化物与苯硒阴离子的开环反应为制备具有高区域和立体选择性的 β-羟基苯硒提供了一种简单、温和和有效的方法,产率从 67 到98%。该反应在NaOH/THF水溶液中使用氨基亚氨基甲亚磺酸(二氧化硫脲,TDO)进行以从二苯基二硒化物生成苯基硒化钠。