Potassium Bromide → N,N-bis(1H-benzimidazol-2-ylmethyl)-N-benzylamine chromium (III) chloride

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Reaction Steps

3d was synthesised by an analogous procedure to that described for 3a using 2d (0.63 g, 1.73 mmol) and CrCl3(THF)3 (0.65 g, 1.73 mmol). Yield 0.79 g (88%). Anal. Calc. for C23H21Cl3CrN5 (in %): C, 52.54; H, 4.03; N, 13.32. Found C, 52.43; H, 4.03; N, 13.23. IR (KBr, cm−1), υ 3255 (NH, s), υ 1617-1550 (ArC═C, C═N, m), δ 1454, 1477, 1496 (N—H, s, m), υ 1276 (CN, s), δ 749 (CH, s). UV-VIS (DMF, 298 K): λmax/nm (εmax/dm3 mol−1 cm−1)=462 (162), 665 (75), 726 (shoulder). +FAB-MS: (m/z): 489 ([M-Cl]+), 454 ([M-2Cl]), μμeff·=4.00 MB.

Provenance & Evidence