title: Pd(II)-catalyzed dehydrogenative olefination of vinylic C-H bonds with allylic esters: general and selective access to linear 1,3-butadienes.
abstract: This work demonstrates a general and efficient method to prepare conjugated dienes by Pd(II)-catalyzed direct olefination of unactivated alkenes with allylic esters and acrylates via vinylic C-H activation. Various aryl and heteroaryl alkenes as well as aliphatic alkenes all give the desired linear 1,3-butadienes with retention of the traditional leaving groups such as OAc and other carboxylic acid ester groups.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou Gansu 730000, P. R. China.
authors.forename: Yuexia
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zili
authors.initials: Z
authors.lastname: Cui
authors.forename: Zejiang
authors.initials: Z
authors.lastname: Li
authors.forename: Zhong-Quan
authors.initials: ZQ
authors.lastname: Liu
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D002070:Butadienes / Q000138:chemical synthesis* / Q000737:chemistry; D002384:Catalysis; D004952:Esters; D015394:Molecular Structure; D010165:Palladium / Q000737:chemistry*
chemical_list: D000475:Alkenes; D002070:Butadienes; D004952:Esters; D010165:Palladium