Syntheses of Donor–Acceptor-Functionalized Dihydroazulenes
作者:Søren Lindbæk Broman、Martyn Jevric、Andrew D. Bond、Mogens Brøndsted Nielsen
DOI:10.1021/jo4020326
日期:2014.1.3
properties relies on ready access to new derivatives via efficient synthetic protocols. The central DHA core is conveniently prepared in a four-step synthesis starting from acetophenone and tropylium substrates. Here, the outcome of this reaction as a function of the nature of the substituent group on the phenyl unit of acetophenone is investigated in detail. A wide variety of functional groups (nitro, cyano