Syntheses totales et etudes de lignanes biologiquement actifs—I
作者:Eric Brown、Jean-Pierre Robin、Robert Dhal
DOI:10.1016/0040-4020(82)85093-x
日期:1982.1
Several biaryls bearing various substituents on both rings were synthesized in a preparative fashion, and in yields up to 88% by a technical improvement on the classical Ullmann reaction. All these biaryls bear reactive functional groups (i.e. formyl, methoxycarbonyl, dimethoxycarbonylpropyl and butanolidylmethyl) in both the o and o′ positions. The biaryls 9, 13, 21 and 26–33 are plausible synthons