“…3, 133.1, 132.5, 128.5, 127.7, 127.5, 126.4, 126.0, 125.6, 124.6, 69.0, 64.5, 64.0, 30.0, 19.2, 19.0;IR 3381, 3055, 2959, 2928, 2874, 1508, 1466, 1387, 1368, 1076, 1047 4.2.3. (R, ,2-ethanediamine (3c 5, 139.0, 126.6, 124.9, 68.6, 63.9, 63.7, 34.2, 31.1, 29.9, 19.2, 19.0;IR 3399, 3310, 2963, 2876, 1508, 1464, 1362, 1074, 1022 6.91-6.96 (m, 8H), 3.89 (s,2H),3.74 (dd,J=3.6,11.4 Hz,2H),3.67 (dd,J=7.4,11. 2, 136.3, 129.0, 126.9, 68.6, 64.3, 63.9, 29.9, 20.9, 19.2, 19.0;IR 3360, 3312, 2959, 2926, 2874, 1653, 1514, 1464, 1076 6. 4H),4H),3.86 (s,2H),3.75 (dd,J=3.6,11.4 Hz,2H),3.68 (dd,J=7.4,11.4 Hz),3.71 (s) 2, 134.4, 128.0, 113.6, 68.3, 64.1, 63.7, 54.9, 29.8, 19.2, 18.9;IR 3383, 3302, 2963, 2874, 1611, ...…”