title: Unexpected [2 + 2] C-C bond coupling due to photocycloaddition on orthopalladated (Z)-2-aryl-4-arylidene-5(4H)-oxazolones.
abstract: A [2 + 2] photocycloaddition has been observed in regioselectively orthopalladated 2-aryl-4-arylidene-5(4H)-oxazolones, leading to unprecedented cyclobutane-bis(oxazolones).
authors.affiliation: Organic Chemistry Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 400028 Cluj-Napoca, Romania.
authors.forename: Doru
authors.initials: D
authors.lastname: Roiban
authors.forename: Elena
authors.initials: E
authors.lastname: Serrano
authors.forename: Tatiana
authors.initials: T
authors.lastname: Soler
authors.forename: Ion
authors.initials: I
authors.lastname: Grosu
authors.forename: Carlos
authors.initials: C
authors.lastname: Cativiela
authors.forename: Esteban P
authors.initials: EP
authors.lastname: Urriolabeitia