N-CARBOBENZOXY-DL-NORLEUCINE
Product Name N-CARBOBENZOXY-DL-NORLEUCINE
CAS15027-13-1
MFC14H19NO4
MW265.3
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MassMS-NW-2309 N-benzyloxycarbonyl-DL-norleucine C14H19NO4 (Mass of molecular ion: 265)
Source Temperature: 230 °C Sample Temperature: 160 °C Direct, 75 eV
15.0 2.9 16.0 1.0 17.0 3.3 18.0 15.1 26.0 4.1 27.0 24.0 28.0 30.7 29.0 29.5 30.0 5.3 31.0 2.4 37.0 2.4 38.0 4.6 39.0 23.8 40.0 4.3 41.0 42.0 42.0 10.8 43.0 100.0 44.0 22.8 45.0 1.4 49.0 1.2 50.0 9.6 51.0 20.6 52.0 7.2 53.0 8.0 53.5 1.1 54.0 10.5 55.0 9.8 56.0 22.7 57.0 18.0 58.0 1.1 61.0 1.5 62.0 3.1 63.0 6.8 64.0 2.1 65.0 18.7 66.0 2.5 67.0 4.0 68.0 2.6 69.0 6.9 70.0 3.4 71.0 1.1 73.0 6.4 74.0 5.8 75.0 1.6 76.0 1.7 77.0 41.4 78.0 11.2 79.0 73.5 80.0 8.7 81.0 3.0 82.0 4.1 83.0 3.0 84.0 5.3 85.0 6.1 86.0 4.5 87.0 1.0 89.0 7.6 90.0 9.2 91.0 96.2 92.0 12.3 93.0 1.6 94.0 1.2 95.0 1.5 96.0 2.4 98.0 1.8 101.0 23.2 102.0 1.0 105.0 9.8 106.0 8.2 107.0 54.7 108.0 97.6 109.0 7.8 111.0 1.4 112.0 11.8 113.0 1.5 129.0 1.9 130.0 4.4 176.0 6.7 177.0 1.0 220.0 1.0 265.0 1.3
400 MHz in CDCl3
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1H NMR 399.65 MHz C14 H19 N O4 0.045 g : 0.5 ml CDCl3 N-benzyloxycarbonyl-DL-norleucine 
Assign. Shift(ppm)
A 11.2 B 7.35 to 7.32 C 6.51 C 5.37 D 5.15 to 5.11 E 4.401 E 4.24 F *1 1.89 G *1 1.69 J 1.34 K 0.889 MIXTURE OF ISOMERS DUE TO C-N RESTRICTED ROTATION
Hz ppm Int.4484.28 11.221 37 2945.87 7.372 75 2945.50 7.371 75 2945.13 7.370 75 2940.01 7.357 400 2935.79 7.346 1000 2928.65 7.329 312 2925.90 7.322 318 2920.41 7.308 137 2918.03 7.302 98 2912.71 7.289 30 2912.16 7.287 30 2151.11 5.383 110 2142.68 5.362 113 2057.33 5.148 155 2053.11 5.138 52 2052.75 5.137 51 2051.83 5.135 48 2051.28 5.133 49 2050.73 5.132 49 2045.05 5.118 425 2042.49 5.111 341 2030.22 5.080 37 1769.57 4.428 42 1764.26 4.415 57 1761.70 4.409 82 1758.76 4.401 45 1756.57 4.396 81 1753.82 4.389 59 1748.51 4.376 41 362.49 0.908 192 355.71 0.891 403 348.75 0.873 219 340.32 0.852 55
in CDCl3
KBr disc
nujol mull
4880 A,200 M,powder
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