Process for the preparation of alpha-hydroxyaryl-alkanoic acids
申请人:ZAMBON S.p.A.
公开号:EP0152003A1
公开(公告)日:1985-08-21
57 A process is described for the preparation of alpha- hydroxyl-alkanoic acids of formula
which are known anti-inflammatory agent or intermediates for known pharmaceutical products. The process consists essentialiy in the rearrangement of phenolates of formula
wherein Ar is an unsubstituted or substituted phenyl or naphthyl, in aqueous environment or in an organic medium, at temperatures comprised within the range of from 0° to 100°C and within short times, followed by either acid or alkaline hydrolysis.
57 描述了一种制备已知消炎剂或已知医药产品中间体的式α-羟基-烷酸的工艺。 该工艺主要包括在水环境或有机介质中,在 0° 至 100°C 的温度范围内和短时间内,对式(其中 Ar 为未取代或取代的苯基或萘基)苯酚进行重排,然后进行酸或碱水解。
CASTALDI, G.;GIORDANO, C.;UGGERI, F., SYNTHESIS, BRD, 1985, N 5, 505-506
作者:CASTALDI, G.、GIORDANO, C.、UGGERI, F.
DOI:——
日期:——
US4642376A
申请人:——
公开号:US4642376A
公开(公告)日:1987-02-10
Synthesis of 2-Arylalkanoic Acids: Solvent-Promoted Rearrangement of α-Bromoalkyl Aryl Acetals