title: Recyclable and Reusable [RuCl2(p-cymene)]2/Cu(OAc)2/PEG-400/H2O System for Oxidative C-H Bond Alkenylations: Green Synthesis of Phthalides.
abstract: [RuCl2(p-cymene)]2 in a mixture of poly(ethylene glycol) (PEG-400) and water is shown to be an extremely efficient catalyst for the cross-dehydrogenative C-H bond alkenylation reaction between benzoic acids and alkenes. The reaction could be conducted at 80 °C using Cu(OAc)2·H2O as oxidant, yielding a variety of phthalide derivatives in good to excellent yields. More importantly, both [RuCl2(p-cymene)]2 and Cu(OAc)2 in the PEG-400/H2O system could be easily recycled and reused six times without any loss of catalytic activity.
authors.affiliation: Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University , Nanchang 330022, P. R. China.|School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University , Guangzhou 510006, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
authors.affiliation: Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University , Nanchang 330022, P. R. China.
authors.forename: Tinli
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University , Nanchang 330022, P. R. China.
authors.forename: Tao
authors.initials: T
authors.lastname: Yan
authors.affiliation: Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University , Nanchang 330022, P. R. China.
authors.forename: Mingzhong
authors.initials: M
authors.lastname: Cai