title: PPh3-catalyzed synthesis of dicyano-2-methylenebut-3-enoates as efficient dienes in catalytic asymmetric inverse-electron-demand Diels-Alder reaction.
abstract: We present here the synthesis of dicyano-2-methylenebut-3-enoates as novel Diels-Alder dienes through an efficient PPh(3)-catalyzed strategy, and an unprecedented PPh(3)-catalyzed addition/all-carbon-based asymmetric inverse-electron-demand Diels-Alder sequence reaction is disclosed for the first time.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, Institute of Biochemistry and Molecular Biology, Lanzhou University, Lanzhou 730000, China.
authors.forename: Xianxing
authors.initials: X
authors.lastname: Jiang
authors.forename: Dan
authors.initials: D
authors.lastname: Fu
authors.forename: Xiaomei
authors.initials: X
authors.lastname: Shi
authors.forename: Shoulei
authors.initials: S
authors.lastname: Wang
authors.forename: Rui
authors.initials: R
authors.lastname: Wang
mesh_terms: D000475:Alkenes / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D002384:Catalysis; D004583:Electrons; D009570:Nitriles / Q000138:chemical synthesis / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D000475:Alkenes; D009570:Nitriles; D009942:Organometallic Compounds; C562016:bis(triphenylphosphine)palladium(II); D002244:Carbon; C000945:dicyanmethane