Download (4Mb) - Etheses - Saurashtra University

Part-IIIResults and DiscussionS. No R X MolFormula(Sol. of Recryst.)VIIxixOHO C 18 H 16 N 2 O 3(E)M.P.( o C)IR (cm -1 )(KBr)256-258 3378(γ OH ),3282(γ NH ),1715(γ CO ),1644(γ CONH ).Mass(m/e)NMR (δppm)(DMSO-d 6 )-- --VIIxxClS C 18 H 15 ClN 2 OS(E)244-245 3280(γ NH ),2935(γ CH ),1588,1550(γ CH ).342[M + ],337, 231,105.1.76 (s, 3H, CH 3 ), 5.46 (d, 1H, H at 4, J = 3.36), 7.21-7.59 (m, 9H, Ar-H), 9.29 (s, 1H, NH at 1), 9.98 (s, 1H,NH at 3).VIIxxiBrSC 18 H 15 BrN 2 OS(E)198-200 3282(γ NH ),3070(γ CH ),1606,1575(γ CH ).388[M + ],371, 281,231, 172,144.1.78 (s, 3H, CH 3 ), 5.49 (d, 1H, H at 4, J = 3.2), 7.15-7.51 (m, 9H, Ar-H), 8.90 (s, 1H, NH at 1), 9.61 (s, 1H,NH at 3).VIIxxiiClSC 18 H 15 ClN 2 OS(E)202-203 3289(γ NH ),3020(γ CH ),1585(γ CH ).-- 1.82 (s, 3H, CH 3 ), 5.88 (d, 1H, H at 4, J = 2.76), 7.19-7.55 (m, 9H, Ar-H), 8.73 (s, 1H, NH at 1), 10.04 (s, 1H,NH at 3)VIIxxiii S C 20 H 18 N 2 OS(E)220-222 3207(γ NH ),3081(γ CH ),1587(γ CH ).-- 1.76 (s, 3H, CH 3 ), 5.01 (dd, 1H, H at 4, J = 3.7), 6.20(dd., 1H, H at a, J = 6.2), 6.39 (dd., 1H, H at b, J =15.88), 7.21-7.62 (m, 10H, Ar-H), 8.84 (s, 1H, NH at1), 9.77 (s, 1H, NH at 3).VIIxxivNO 2S C 18 H 15 N 3 O 3 S(E)236-238 3286(γ NH ),3008(γ CH ),1602(γ CH ).-- --460