Synthesis of Imidazo[1,2-a]pyridine and Pyrido[1,2-a]pyrimidine Derivatives by the Addition and Cyclocondensation Reactions of Ketenaminals Containing Imidazolidine or Hexahydropyrimidine Ring with Esters of a,b-Unsaturated Acids
作者:Zhi-Tang Huang、Zhi-tang Huang、Zhi-rong Liu
DOI:10.3987/r-1986-08-2247
日期:——
HUANG ZHI-TANG; LIU ZHI-RONG, HETEROCYCLES, 24,(1986) N 8, 2247-2254
作者:HUANG ZHI-TANG、 LIU ZHI-RONG
DOI:——
日期:——
Palladium-Catalyzed Cross-Coupling of Internal Alkenes with Terminal Alkenes to Functionalized 1,3-Butadienes Using CH Bond Activation: Efficient Synthesis of Bicyclic Pyridones
cross‐coupling of internal alkenes of α‐oxoketene dithioacetals with terminal alkenes has been successfully realized by palladium‐catalyzedCH bond activation, affording functionalized 1,3‐butadienes. Condensation of the resultant 1,3‐butadienes by diamines efficiently produced potentially bioactive bicyclic pyridone derivatives (see scheme).