The I2-catalyzed cyclization reaction of chalcones and 2-aryl propionaldehydes or isobutyraldehyde has been developed for the synthesis of 1,3,5-triarylbenzenes and 2,3-dihydrobenzofuran derivatives. This reaction tolerates a wide range of functional groups. Moreover, this method features an inexpensive catalyst and available starting materials.
Assembly of unsymmetrical 1,3,5-triarylbenzenes <i>via</i> tandem reaction of β-arylethenesulfonyl fluorides and α-cyano-β-methylenones
作者:Fang Zhang、Yi An、Jichang Liu、Guangfen Du、Zhihua Cai、Lin He
DOI:10.1039/d2nj01549h
日期:——
A transition-metal-free method has been proposed for the synthesis of unsymmetrical 1,3,5-triarylbenzenes via a tandem Diels–Alder cycloaddition/SuFEx/elimination process.