(E)-1,3-bis(2,6-diisopropylphenyl)-2-((2,2,2-trifluoroethylidene)hydrazono)imidazolidine :
white solid; mp 133–134 o C;
1 H NMR (600 MHz, CDCl3) δ 7.28 (t, J = 7.4 Hz, 1H), 7.19 (t, J = 7.5 Hz, 1H), 7.14 (d, J = 7.5 Hz, 2H), 7.04 (d, J = 7.5 Hz, 2H), 6.85 (q, J = 4.2 Hz, 1H), 3.78 (s, 4H), 3.12 – 3.03 (m, 4H), 1.24 (t, J = 6.9 Hz, 12H), 1.16 (d, J = 6.6 Hz, 6H), 1.05 (d, J = 6.6 Hz, 6H);
19F NMR (565 MHz, CDCl3) δ –66.51 (d, J = 3.7 Hz);
13C NMR (150 MHz, CDCl3) δ 160.08, 147.72, 145.49, 137.54, 134.30, 133.60 (q, JC-F = 23.60 Hz), 129.10, 127.97, 124.29, 123.83, 121.17 (q, JC-F = 179.01 Hz), 51.45, 49.07, 29.21, 28.95, 24.71, 24.40, 24.02, 22.92;
IR (KBr) ν 2987.56, 1534, 1491, 1463, 1325, 1267, 934, 894 cm-1 ;
HRMS (ESI) found: m/z 501.3204, [M+H]+ calcd. for C29H40F3N4 + 501.3200.
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