title: Palladium-catalyzed aerobic oxidative double allylic C-H oxygenation of alkenes: a novel and straightforward route to α,β-unsaturated esters.
abstract: A mild tandem oxidative functionalization of allyl aromatic hydrocarbons was accomplished using the catalytic system of Pd(OAc)2/DMA under 1 atm O2. The green twofold C-O bond formation involving double allylic C-H oxygenation unlocks opportunities for markedly different synthetic strategies. Moreover, the reaction affords aryl α,β-unsaturated esters directly from readily available terminal olefins in moderate to good yields with excellent chemo- and stereoselectivities.
authors.affiliation: School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China. jianghf@scut.edu.cn.
authors.forename: Wanfei
authors.initials: W
authors.lastname: Yang
authors.forename: Huoji
authors.initials: H
authors.lastname: Chen
authors.forename: Jianxiao
authors.initials: J
authors.lastname: Li
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Li
authors.forename: Wanqing
authors.initials: W
authors.lastname: Wu
authors.forename: Huanfeng
authors.initials: H
authors.lastname: Jiang