Synthesis, Characterization, and Gas Permeation Properties

85
Chapter 3
38.1, 44.7, 46.8, 47.9, 174.0, 174.9, 178.7, 179.0; HRMS(FAB): [MH] + , calcd for
C58H111N9O8 1062.8628, found 1062.8636; anal. calcd for C58H111N9O8: C, 65.56; H,
10.53; N, 11.86; O, 12.05, found: C, 65.49; H, 10.67; N, 11.99; O, 11.85.
G2-b-ІІ. It was synthesized by the reaction of G2-b-І (10 g, 0.009 mol) with
succinic anhydride (1.41 g, 0.014 mol) under the same conditions as those for the
synthesis of G1-a-ІІ and the product was purified by washing with water. Yield 88%,
white solid, mp 141 °C, 1 H NMR (CD3OD, 400 MHz, 25 °C, ppm): 0.89 (t, J = 6.8 Hz,
24H, CH3CH2), 1.22–1.39 (m, 16H, CH3CH2), 1.49–1.59 (m, 16H, CH3CH2CH2),
1.66–1.86 (m, 12H, C(=O)NHCH2CH2CH2), 2.16–2.23 (m, 4H, (CH3CH2CH2)2CH),
2.49–2.68 (m, 12H, C(=O)CH2CH2C(=O)), 3.12–3.23 (m, 12H,
C(=O)NHCH2CH2CH2), 3.33–3.41 (m, 12H, C(=O)NHCH2CH2CH2), 7.96 (brs, 2H,
C(=O)NH), 8.12 (brs, 4H, C(=O)NH); 13 C NMR (CD3OD, 100 MHz, 25 °C, ppm):
14.4, 21.9, 28.4, 28.6, 28.9, 29.1, 29.2, 29.6, 31.7, 36.4, 37.8, 44.7, 46.7, 48.0, 174.0,
174.7, 174.9, 178.8, 179.1; HRMS(FAB): [MH] + , calcd for C62H115N9O11 1162.8789,
found 1162.8795; anal. calcd for C62H115N9O11: C, 64.05; H, 9.97; N, 10.84; O, 15.14,
found: C, 63.88; H, 9.75; N, 11.08; O, 15.29.
N 1 ,N 1 ′-(3,3′-Azanediylbis(propane-3,1-diyl))bis(N 4 ,N 4 -bis(3-(2-ethylhexana
mido)propyl)succinamide) (G2-c-І). The synthesis of G2-c-І was carried out in the
same way as that of G1-a-І by making use of G1-c-ІІ instead of 2-ethylbutanoic acid
and the product was isolated by washing with water. Yield 91%, white solid, mp
99 °C, 1 H NMR (CD3OD, 400 MHz, 25 °C, ppm): 0.85–0.90 (m, 24H, CH3CH2),
1.21–1.45 (m, 24H, CH3CH2CH2CH2), 1.50–1.59 (m, 8H, CH3CH2), 1.64–1.74 (m, 4H,
C(=O)NHCH2CH2CH2NH), 1.79–1.84 (m, 8H, (C(=O)NHCH2CH2CH2), 2.04–2.11 (m,
4H, (CH3CH2CH2CH2)(CH3 CH2)CH), 2.23 (brs, 1H, CH2NHCH2), 2.47–2.67 (m,
12H, C(=O)NHCH2CH2CH2NH, C(=O)CH2CH2C(=O)), 3.13–3.24 (m, 12H,
C(=O)NHCH2CH2CH2NC(=O), C(=O)NHCH2CH2CH2NH), 3.34–3.41 (m, 8H,
C(=O)NHCH2CH2CH2), 7.91 (brs, 2H, C(=O)NH), 8.08 (brs, 4H, C(=O)NH); 13 C
NMR (CD3OD, 100 MHz, 25 °C, ppm): 12.5, 14.4, 23.7, 27.2, 28.6, 29.2, 29.7, 30.1,
30.9, 31.8, 33.6, 37.7, 38.2, 44.7, 46.8, 174.0, 174.8, 178.7, 179.0; HRMS(FAB):