title: Hydrogen bond-assisted 6π-azaelectrocyclization of penta-2,4-dienamides: synthesis of dihydropyridin-2(3H)-ones.
abstract: A facile and efficient synthesis of substituted dihydropyridin-2(3H)-ones is developed from penta-2,4-dienamides, in which an intramolecular C-N bond was formed through thermal 6π-azaelectrocyclization. The intramolecular hydrogen bonding-assisted cyclization reaction opens access to a variety of dihydropyridin-2(3H)-ones.
authors: Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
authors: Xu
authors: X
authors: Liu
authors: Ning
authors: N
authors: Zhang
authors: Jiming
authors: J
authors: Yang
authors: Yongjiu
authors: Y
authors: Liang
authors: Rui
authors: R
authors: Zhang
authors: Dewen
authors: D
authors: Dong
mesh_terms: D000475:Alkenes / Q000737:chemistry*; D000577:Amides / Q000737:chemistry*; D001372:Aza Compounds / Q000737:chemistry*; D003500:Cyclization; D004095:Dihydropyridines / Q000737:chemistry*; D004583:Electrons; D006860:Hydrogen Bonding; D015394:Molecular Structure
chemical_list: D000475:Alkenes; D000577:Amides; D001372:Aza Compounds; D004095:Dihydropyridines