( ) 37 δH 3.8 (Hd, 2H, t), δH 2.6 (Hc, 2H, t), δH 2.5 (Hb, 3H, s), δH 2.1 (Ha, 2H, m) 2966 C(sp3)–H 2900 C(sp3)–H 1741 C=O 1694 C=O 1364 1295 δH 9.8 (Hd, 1H, t), δH 2.3 (Hc, 2H, dd), δH 2.2 (Hb, 1H, m), δH 1.0 (Ha, 6H, d) 2960 C(sp3)–H 2937 C(sp3)–H 2875 C–H (CHO) 2719 C–H (CHO) 1728 C=O 1387 1369 3024 C(sp2)–H 2977 C(sp3)–H 2951 C(sp3)–H 1588 C6H2 1464 C6H2 1377 CH3 1029 1-acetylpyrrolidin-2-one C6H9NO2 (MW = 127) 38 3-methylbutanal C5H10O (MW = 86) δH 6.9 (Hc, 2H, s), δH 2.4 (Hb, 6H, s), δH 2.2 (Ha, 3H, s) 39 2-bromo-1,3,5-trimethylbenzene C9H11Br (MW = 198), Br isotope 40 3,4-dihydro-2H-pyran C5H8O (MW = 84) 41 4-isopropylbenzaldehyde C10H12O (MW = 100) δH 6.3 (He, 1H, d, J = 6.2 Hz) (t, long range, J = 2.0 Hz) δH 4.6 (Hd, 1H, dt, J = 6.2 Hz, J = 3.8 Hz)), δH 4.0 (Hc, 2H, t), δH 2.0 (Hb, 2H, m), δH 1.8 (Ha, 2H, m) δH 10.0 (He, 1H, s), δH 7.8 (Hd, 2H, d), δH 7.4 (Hc, 2H, d), δH 3.0 (Hb, 1H, sep), δH 1.3 (Ha, 6H, d) δH 7.5 (Hc, 5H, m), δH 5.1 (Hb, 2H, s), δH 2.1 (Ha, 3H, s) 42 benzyl acetate C9H10O2 (MW = 150) δH 8.0 (Hd, 2H, d (d, long range)), δH 6.9 (Hc, 2H, d (d, long range)), δH 3.88 (Hb, 3H, s), δH 3.85 (Ha, 3H, s) 43 methyl 4-methoxybenzoate C9H10O3 (MW = 166) δH 4.3 (Hc, 1H, m), δH 3.0 (Hb, 2H, d), δH 1.8 (Ha, 3H, d) 44 3-bromobutanenitrile C4H6BrN (MW = 147) –1– 3061 C(sp2)–H 2947 C(sp3)–H 2930 C(sp3)–H 1649 C=C 1243 1071 C–O 3029 C(sp2)–H 2964 C(sp3)–H 2827 C–H (CHO) 2733 C–H (CHO) 1703 C=O 1608 C6H4 1425 C6H4 3035 C(sp2)–H 2966 C(sp3)–H 1743 C=O 1608 C6H4 1498 C6H4 1229 3035 C(sp2)–H 2954 C(sp3)–H 1717 C=O 1608 C6H4 1430 C6H4 1289 1259 2988 C(sp3)–H 2969 C(sp3)–H 2266 C≡N 1452 CH3 1447 ( ) 45 N-(4-ethoxyphenyl)acetamide C10H13NO2 (MW = 179) 46 hex-2-ynoic acid C6H8O2 (MW = 112) 47 2-(2-chlorophenyl)ethanol C8H9ClO (MW = 156), Cl isotope 48 4,4-dimethoxybutan-2-one C6H12O3 (MW = 132) 49 δH 7.5 (Hf, 1H, exchange), δH 7.4 (He, 2H, d (d, long range)), δH 6.8 (Hd, 2H, d (d, long range)), δH 4.0 (Hc, 2H, q), δH 2.1 (Hb, 3H, s), δH 1.4 (Ha, 3H, t) δH 9.7 (Hd, 1H, exchange), δH 2.3 (Hc, 2H, t), δH 1.6 (Hb, 2H, m), δH 1.0 (Ha, 3H, t) δH 7.3 (Hg, 1H, d (d, long range)), δH 7.2 (Hf, 1H, d (d, long range)), δH 7.1 (He, 1H, dd (d, long range)), δH 7.1 (Hd, 1H, dd (d, long range)), δH 3.8 (Hc, 2H, t), δH 3.2 (Hb, 1H, exchange), δH 2.9 (Ha, 2H, t) δH 4.8 (Hd, 1H, t), δH 3.4 (Hc, 6H, s), δH 2.7 (Hb, 2H, d), δH 2.2 (Ha, 3H, s) 3323 (broad) O–H 3064 C(sp2)–H 2956 C(sp3)–H 2938 C(sp3)–H 1595 C6H4 1476 C6H4 1055 C–O δH 7.4 (Hc, 2H, d (d, long range)), δH 6.7 (Hb, 2H, d (d, long range)), δH 4.3 (Ha, 2H, exchange) 3479 N–H 3373 N–H 3069 C(sp2)–H 2216 C≡N 1629 C6H4 1604 C6H4 1516 C6H4 1177 C–N 3083 C(sp2)–H 2956 C(sp3)–H 1716 C=O 1688 C=O? C=C? 1654 C=O? C=C? 1623 C=C 1596 C=C 1220 C=O+– 1051 C–O 954 trans-H–C=C–H 3334 N–H 3302 (N–H) 2949 C(sp3)–H 2851 C(sp3)–H 1463 1318 1142 C–O, C–N 1097 C–O, C–N 3083 C(sp2)–H 3057 C(sp2)–H 1565 C6H4 1459 C6H4 1076 1060 4-aminobenzonitrile C7H6N2 (MW = 118) 50 (E)-4-methoxybut-3-en-2-one C5H8O2 (MW = 100) δH 7.6 (Hd, 1H, d, J = 13 Hz), δH 5.6 (Hc, 1H, d, J = 13 Hz), δH 3.7 (Hb, 3H, s), δH 2.2 (Ha, 3H, s) δH 3.7 (Hc, 4H, t), δH 2.9 (Hb, 4H, t), δH 2.6 (Ha, 1H, exchange) 51 morpholine C4H9NO (MW = 87) δH 7.6 (Hc, 1H, s (t, long range)), δH 7.3 (Hb, 2H, d (dd, long range)), δH 6.9 (Ha, 1H, t) 52 3286 N–H 3132 C(sp2)–H 2982 C(sp3)–H 1661 C=O 1600 C6H4 1511 C6H4 1248 C–O and/or C–N 1049 C–O 3300–2500 (broad) CO2H 2218 C≡C 1653 C=O 1206 C=O+– 1032 C–O 1,3-dibromobenzene C6H4Br2 (MW = 234), Br2 isotope –2– 2956 C(sp3)–H 2935 C(sp3)–H 1723 C=O 1121 C–O 1050 C–O
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