760
B. KARAMI ET AL.
116.86, 48.47, 47.89, 29.62, 23.24; Anal. Calcd. for C13H14N2O2S: C, 59.52; H, 5.38; N,
10.88; S, 12.22. Found: C, 60.83; H, 5.53; N, 10.72; S, 12.34; MS (m/z: 262).
5-Acetyl-6-methyl-4-(2-methoxylphenyl)-3,4-dihydropyrimidine-2(1H)-thione
1
(5g): FT-IR (KBr) cm−1: 3325, 3184, 1671, 1592, 1387, 754; H NMR (400 MHz,
DMSO-d6): δH (ppm) 10.21 (s, 1H), 9.35 (s, 1H), 7.26 (d, J = 8 Hz, 1H), 7.03–6.92
(m, 2H), 6.89 (d, J = 8 Hz, 1H), 5.58 (d, J = 3.6 Hz, 1H), 3.76 (s, 3H), 2.27 (s, 3H),
2.07 (s, 3H); 13C NMR (100 MHz): δc (ppm) 195.57, 174.61, 156.65, 144.35, 130.51,
129.74, 127.76, 120.91, 111.83, 109.61, 55.91, 49.54, 30.10, 18.30; Anal. Calcd. for
C14H16N2O2S: C, 60.85; H, 5.84; N, 10.14; S, 11.60. Found: C, 59.98; H, 5.58; N, 9.37;
S, 12.10; MS (m/z: 276).
5-Acetyl-6-methyl-4-(3,4,5-trimethoxyphenyl)-3,4-dihydropyrimidine-2(1H)-
thione (5i): FT-IR (KBr) cm−1: 3297, 3002, 1613, 1593, 1567, 1187, 1124, 1018, 685; 1H
NMR (400 MHz, DMSO-d6): δH (ppm) 10.28 (s, 1H), 9.71 (s, 1H), 6.51 (s, 2H), 5.25 (s,
1H), 3.71 (s, 6H), 3.62 (s, 3H), 2.33 (s, 3H), 2.16 (s, 3H); 13C NMR (100 MHz): δc (ppm)
195.47, 174.56, 153.38, 145.06, 138.86, 137.48, 110.51, 104.23, 60.43, 56.28, 54.23,
30.84, 18.65; Anal. Calcd. for C16H20N2O4S: C, 57.12; H, 5.99; N, 8.33; S, 9.53. Found:
C, 57.45; H, 5.98; N, 8.33; S, 10.44; MS (m/z: 336).
5-Acetyl-6-methyl-4-(4-metheylphenyl)-3,4-dihydropyrimidine-2(1H)-thione
1
(5j): FT-IR (KBr) cm−1: 3329, 3177, 1671, 1571, 1454, 1341, 749; HNMR (400 MHz,
DMSO-d6): δH (ppm) 10.24 (s, 1H), 9.71 (s, 1H), 7.14–7.08 (2d Jc = 7,6 and 7,6 Hz, 4H),
5.23 (s, 1H), 2.31 (s, 3H), 2.25 (s, 3H), 2.12 (s, 3H); 13C NMR (100 MHz): δc (ppm) 195,
28, 174.42, 144.84, 140.45, 137.43, 129.62, 126.96, 110.86, 54.02, 30.78, 21.13, 18.67;
Anal. Calcd. for C14H16N2OS: C, 64.58; H, 6.19; N, 10.76; S, 12.32. Found: C, 65.97; H,
6.33; N, 10.84; S, 13.02; MS (m/z: 260).
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