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Volumn 3, Issue 2, 2006, Pages 153-156

An efficient and eco-friendly procedure for the synthesis of Hantzsch ethyl 1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylates under mild and green conditions

Author keywords

1,4 dihydroyridines; Ammonium salts; Ethyl 1,4 dihydro 2,6 dimethylpyridine 3,5 dicarboxylate; Green conditions; Hantzsch synthesis; Solvent free conditions

Indexed keywords


EID: 33749267537     PISSN: 15701786     EISSN: None     Source Type: Journal    
DOI: 10.2174/157017806775224288     Document Type: Article
Times cited : (39)

References (28)
  • 28
    • 34247238320 scopus 로고    scopus 로고
    • Physical, spectrum (IR, 1H-NMR) and mass data of the reported product are as follows: 4a: m.p. 183-185 °C; MS, m/s, 253, 224, 196, 100; IR (KBr, 3351, 2924, 1692, 1657, 1213 cm1; 1H-NMR (90 MHz, CDCl3) δ ppm 1.2 (t, 6H) 2.1 (s, 6H, 2.8 (s, 1H),3.2 (s, 1H, 4.1 (q, 4H, 5.3 (s, 1H, 4b: m.p. 128-130 °C; MS: m/s, 267, 252, 224, 196; IR (KBr, 3343, 2965, 1643, 1216 cm-1; 1H-NMR (90 MHz, CDCl3) δ ppm 0.9 (d, 3H) 1.2 (t, 6H, 2.2 (s, 6H, 3.7 (q, 1H, 4.1 (q, 4H, 5.6 (s, 1H, 4c: m.p. 109-111 °C; MS: m/s, 281, 252, 224, 196; IR (KBr, 3319, 2983, 1646, 1212 cm-1; 1H-NMR (90 MHz, CDCl3) δ ppm 0.7 (t, 3H, 1.2 (m, 8H, 2.2 (s, 6H, 3.9-4.1 (m, 5H, 5.9 (s, 1H, 4d: m.p. 129-131 °C; MS: m/s, 295, 252, 224, 196; IR (KBr, 3352, 2956, 1700, 1490, 1212 cm-1; 1H-NMR (90 MHz, CDCl3)
    • 3) δ 1.2 (t, 6H), 2.3 (s, 6H), 4.1 (q, 4H), 5.3 (s, 1H), 6.1 (s, 1H), 6.7-7.2 (m, 3H).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.