title: Brønsted Acid-Promoted One-Pot Synthesis of Chrysene Derivatives via Isochromenylium Intermediate Formed in Situ.
abstract: Trifluoromethanesulfonic acid (HOTf) promoted cross-coupling of ortho-[2-(4-methoxylphenyl)-alkynyl]acetophenones with ortho-alkynylbenzaldehydes affording chrysene derivatives has been developed. The present cascade reaction provides a facile one-pot synthesis of multisubstituted chrysenes as well as naked chrysene under mild conditions. The mechanism experimental results demonstrate isochromenylium is a key intermediate for this transformation.
authors.forename: Biao
authors.initials: B
authors.lastname: Guo
authors.forename: Yiming
authors.initials: Y
authors.lastname: Zhou
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Ruimao
authors.initials: R
authors.lastname: Hua