976
V. Sivamurugan, A. Vinu, V. Suresh, M. Palanichamy and V. Murugesan
Vol 44
(ester C=Ostr), 1615 (C=Nstr), 1535(aromatic C=C). m/z: 251
(100.0%), 252 (14.8%), 253.1 (1.8%). C13H17NO4 (251.1):
Calcd.: C, 62.14; H, 6.82; N, 5.57; O, 25.47. Found: C, 62.10; H,
6.78; N, 5.50; O, 25.42
Diethyl-2,6-dimethyl-4(4-hydroxy-3-methoxyphenyl)-
pyridine-3,5-dicarboxylate (6). FTIR spectrum (KBr, cm-1):
3025 - 2980 (alkyl C-Hstr), 1733 (ester C=Ostr), 1630 (C=Nstr),
1530 (aromatic C=C). m/z: 373 (100.0%), 374 (22.1%).
C20H23NO6 (373.15) Calcd.: C, 64.33; H, 6.21; N, 3.75; O,
25.71. Found. C, 64.30; H, 6.15; N, 3.70; O, 25.68.
REFERENCES
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Commun. 2001, 31, 2241.
Diethyl-2,6-dimethyl-4(3,4-dimethoxyphenyl)pyridine-3,5-
dicarboxylate (7). FTIR spectrum (KBr, cm-1): 3015 - 2980
(alkyl C-Hstr), 1725 (ester C=Ostr), 1620 (C=Nstr), 1525
(aromatic C=C). m/z: 387 (100.0%), 388 (23.6%). C21H25NO6
(387.17) Calcd.: C, 65.10; H, 6.50; N, 3.62; O, 24.78. Found: C,
65.05; H, 6.45; N, 3.50; O, 24.60.
Diethyl-2,6-dimethyl-4(2-furyl)pyridine-3,5-dicarboxylate
(8). FTIR spectrum (KBr, cm-1): 3010 - 2975 (alkyl C-Hstr),
1730 (ester C=Ostr), 1615 (C=Nstr), 1535 (aromatic C=C).
C17H19NO5 (317.13): m/e: 317.13 (100.0%), 318.13 (18.8%),
319.13 (2.7%). Ele. Comp: Calcd. C, 64.34; H, 6.03; N, 4.41; O,
25.21. Found. C, 64.25; H, 6.10; N, 4.35; O, 25.10.
Diethyl-2,6-dimethyl-4(3-indolyl)pyridine-3,5-dicarbox-
ylate (9). FTIR spectrum (KBr, cm-1): 3025 - 2980 (alkyl C-
Hstr), 1735 (ester C=Ostr), 1610 (C=Nstr), 1535 (aromatic
C=C). C21H22N2O4 (366.16): m/e: 366.16 (100.0%), 367.16
(23.1%), 368.16 (3.4%). Ele. Comp: Calcd. C, 68.84; H, 6.05;
N, 7.65; O, 17.47. Found. C, 68.70; H, 6.15; N, 7.50; O, 17.30.
Dimethyl-2,6-dimethyl-4(4-hydroxy-3-methoxyphenyl)-
pyridine-3,5-dicarboxylate (13). FTIR spectrum (KBr, cm-1):
3015 - 2980 (alkyl C-Hstr), 1715 (ester C=Ostr), 1615
(C=Nstr), 1535-1520 (aromatic C=C). C18H19NO6 (345.12):
m/e: 345.12 (100.0%), 346.12 (19.8%), 347.13 (3.1%). Ele.
Comp: Calcd. C, 62.60; H, 5.55; N, 4.06; O, 27.80. Found. C,
62.50; H, 5.40; N, 4.10; O, 27.65.
Dimethyl-2,6-dimethyl-4(3,4-dimethoxyphenyl)pyridine-
3,5-dicarboxylate (14). FTIR spectrum (KBr, cm-1): 3010 - 2985
(alkyl C-Hstr), 1710 (ester C=Ostr), 1620 (C=Nstr), 1525 (aromatic
C=C). C19H21NO6 (359.14): m/e: 359.14 (100.0%), 360.14 (21.0%),
361.14 (3.4%). Ele. Comp: Calcd. C, 63.50; H, 5.89; N, 3.90; O,
26.71. Found. C, 63.35; H, 5.75; N, 3.84; O, 26.60
Dimethyl-2,6-dimethyl-4(2-furyl)pyridine-3,5-dicarboxy-
late (15). FTIR spectrum (KBr, cm-1): 30105 - 2980 (alkyl
C-Hstr), 1705 (ester C=Ostr), 1610 (C=Nstr), 1530 (aromatic
C=C). C15H15NO5 (289.1): m/e: 289.10 (100.0%), 290.10
(16.6%), 291.10 (2.4%). Ele. Comp: Calcd. C, 62.28; H,
5.23; N, 4.84; O, 27.65. Found. C, 62.15; H, 5.10; N, 4.68;
O, 27.54.
Dimethyl-2,6-dimethyl-4(3-indolyl)pyridine-3,5-dicarbox-
ylate (16). FTIR spectrum (KBr, cm-1): 3010 - 2975 (alkyl C-
Hstr), 1713 (ester C=Ostr), 1607 (C=Nstr), 1535 – 1520
(aromatic C=C). C19H18N2O4 (338.13): m/e: 338.13 (100.0%),
339.13 (20.9%), 340.13 (3.0%). Ele. Comp: Calcd. C, 67.44;
H, 5.36; N, 8.28; O, 18.91. Found. C, 67.35; H, 5.26; N, 8.15;
O, 18.80.
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Acknowledgements. The financial assistance received from
the University Grants Commission (UGC), New Delhi in the
form of a major sponsored project has gratefully acknowledged.
One of the authors Dr. V. Sivamurugan thanks Council of
Scientific and Industrial Research (CSIR), New Delhi for the
award of Senior Research Fellowship.
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Pairow, R. J. Chem. Res(S), 2000, 40.