Highly efficient synthesis of sustainable bisphenols from hydroxycinnamic acids

Abstract

Three stilbene based bisphenols: (E)-4,4’-(ethene-1,2-diyl)diphenol (1), (E)-4,4’-(ethene-1,2-diyl)bis(2-methoxyphenol) (2), and (E)-4,4’-(ethene-1,2-diyl)bis(2,6-dimethoxyphenol) (3) were synthesized from p-coumaric, ferulic, and sinapic acid, respectively. This was accomplished with a high-yielding two-step approach, which combined...