Synthesis of novel 2-substituted-5-oxycoumarans<i>via</i>A direct route to 2,3-dihydro-5-hydroxy-2-benzofuranacetic acids
作者:Stefano Ceccarelli、Patrizia De Vellis、Romolo Scuri、Sergio Zanarella、Mario Brufani
DOI:10.1002/jhet.5570300318
日期:1993.5
A number of novel 2-substituted 2,3-dihydro-5-benzofuranols optionally protected on 5-OH group have been prepared via a simple two step route to racemic 2,3-dihydro-5-hydroxy-2-benzofuranacetic acids from hydroquinones and 4-bromocrotonates.
已经通过简单的两步路线从对苯二酚中生成外消旋的2,3-二氢-5-羟基-2-苯并呋喃乙酸,制备了许多新型的2-取代的2,3-取代的2,3-二氢-5-苯并呋喃醇,可任选地被5-OH保护。和4-溴巴豆酸盐。