Immobilisation of photoswitchable diarylcyclohexenes synthesised via cobaltmediated Diels–Alder reaction

Abstract

Functionalised photoswitches – photochromic dithienylcyclohexenes – were prepared in two steps by a cobalt-mediated Diels–Alder reaction of internal alkynes with the isoprenylpinacolboronic ester. The three-component one-pot reaction sequence provides the photochromic dithienylcyclohexenes in up to 67% overall yield.