Indium-catalyzed microwave-accelerated pot economic C–C bond formation process towards the ‘dry-media’ synthesis of pyrimidine derivatives
作者:Manas M. Sarmah、Debajyoti Bhuyan、Dipak Prajapati
DOI:10.1039/c4ra14434a
日期:——
Substituted pyrimidines can be constructed in good yields via a microwave-accelerated C–C bond formation process through Lewis acid catalysed Diels–Alder reaction from easily available uracil diene and electron deficient acetylene carboxylate.
Synthesis of Pyrido[2,3-d]pyrimidines via Palladium-catalyzed Coupling Reaction Followed by Electrocyclic Reaction
作者:Sung Hoon Kim、Kee Yoon Rho、Joong Hyup Kim、Cheol Min Yoon
DOI:10.3987/com-98-8295
日期:——
Novel Synthesis of Pyrido[3,4-d]pyrimidines, Pyrido[2,3-d]pyrimidines, and Quinazolines via Palladium-catalyzed Oxidative Coupling
作者:Kosaku Hirota、Hideki Kuki、Yoshifumi Maki
DOI:10.3987/com-93-s99
日期:——
Oxidative-coupling of 6-azavinyl(or vinyl)-1,3-dimethyluracil derivatives (1, 5, and 7) with electron-deficient olefins in the presence of palladium acetate led to the formation of the corresponding 6-substituted pyrido[3,4-d]pyrimidines (4), pyrido[2,3-d]pyrimidines (6), and quinazolines (8 and 9), respectively, via an intermediacy of azatriene.
Saikia; Thakur; Prajapati, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2002, vol. 41, # 4, p. 804 - 807