Table 1. Structures and yields of compounds 5–61.

Entry	Compound	n	Imidazole ring	R’	Molecular formula	m.p. (°C)	Yields (%)
1	5	1	imidazole	—	C18H17N3	101–103	68
2	6	1	benzimidazole	—	C22H19N3	45–47	70
3	7	1	5,6-dimethyl-benzimidazole	—	C24H23N3	195–197	72
4	8	2	imidazole	—	C19H19N3	267–269	70
5	9	2	benzimidazole	—	C23H21N3	110–112	72
6	10	2	5,6-dimethyl-benzimidazole	—	C25H25N3	112–114	72
7	11	3	imidazole	—	C20H21N3	oil	70
8	12	3	benzimidazole	—	C24H23N3	149–151	70
9	13	3	5,6-dimethyl-benzimidazole	—	C26H27N3	103–105	72
10	14	1	imidazole	phenacyl	C26H24BrN3O	124–126	95
11	15	1	imidazole	4-methoxyphenacyl	C27H26BrN3O2	112–114	95
12	16	1	imidazole	naphthylacyl	C30H26BrN3O	136–138	94
13	17	1	imidazole	4-bromophenacyl	C26H23Br2N3O	105–107	95
14	18	1	imidazole	4-bromobenzyl	C25H23Br2N3	64–66	80
15	19	1	imidazole	4-methylbenzyl	C26H26BrN3	oil	85
16	20	1	benzimidazole	phenacyl	C30H26BrN3O	120–122	95
17	21	1	benzimidazole	4-methoxyphenacyl	C31H28BrN3O2	144–146	95
18	22	1	benzimidazole	naphthylacyl	C34H28BrN3O	161–163	95
19	23	1	benzimidazole	4-bromobenzyl	C29H25Br2N3	222–224	85
20	24	1	benzimidazole	4-methylbenzyl	C30H28BrN3	201–203	85
21	25	1	benzimidazole	2-bromobenzyl	C29H25Br2N3	119–121	75
22	26	1	5,6-dimethyl-benzimidazole	naphthylacyl	C36H32BrN3O	159–161	95
23	27	1	5,6-dimethyl-benzimidazole	4-methoxyphenacyl	C33H32BrN3O2	176–178	94
24	28	1	5,6-dimethyl-benzimidazole	4-methylbenzyl	C32H32BrN3	169–171	85
25	29	2	imidazole	naphthylacyl	C32H29BrN3O	107–109	95
26	30	2	imidazole	4-methoxyphenacyl	C28H28BrN3O2	90–92	96
27	31	2	imidazole	4-bromophenacyl	C27H25Br2N3O	153–155	95
28	32	2	imidazole	phenacyl	C24H26BrN3O	96–98	94
29	33	2	imidazole	4-methylbenzyl	C27H28BrN3	174–176	85
30	34	2	imidazole	2-bromobenzyl	C26H25Br2N3	157–159	80
31	35	2	benzimidazole	naphthylacyl	C35H30BrN3O	239–241	95
32	36	2	benzimidazole	4-methoxyphenacyl	C32H30BrN3O2	182–184	96
33	37	2	benzimidazole	4-bromophenacyl	C31H27Br2N3O	237–239	95
34	38	2	benzimidazole	phenacyl	C31H28BrN3O	179–181	95
35	39	2	benzimidazole	4-methylbenzyl	C31H30BrN3	196–198	95
36	40	2	benzimidazole	2-bromobenzyl	C30H27Br2N3	100–102	90
37	41	2	5,6-dimethyl-benzimidazole	naphthylacyl	C37H34BrN3O	249–251	95
38	42	2	5,6-dimethyl-benzimidazole	4-methoxyphenacyl	C34H34BrN3O2	156–158	96
39	43	2	5,6-dimethyl-benzimidazole	4-bromophenacyl	C33H31Br2N3O	230–232	94
40	44	2	5,6-dimethyl-benzimidazole	phenacyl	C33H32BrN3O	152–154	90
41	45	2	5,6-dimethyl-benzimidazole	2-bromobenzyl	C32H31Br2N3	129–131	85
42	46	2	5,6-dimethyl-benzimidazole	4-methylbenzyl	C33H34BrN3	129–131	86
43	47	3	imidazole	4-methoxyphenacyl	C29H30BrN3O2	oil	90
44	48	3	imidazole	naphthylacyl	C32H30BrN3O	116–118	95
45	49	3	imidazole	4-methylbenzyl	C28H30BrN3	oil	80
46	50	3	benzimidazole	phenacyl	C32H30BrN3O	225–227	90
47	51	3	benzimidazole	4-methoxyphenacyl	C33H32BrN3O2	131–133	94
48	52	3	benzimidazole	naphthylacyl	C36H32BrN3O	120–122	90
49	53	3	benzimidazole	4-bromophenacyl	C32H29Br2N3 O	187–189	94
50	54	3	benzimidazole	4-methylbenzyl	C32H32BrN3	193–195	90
51	55	3	benzimidazole	2-bromobenzyl	C31H29Br2N3	171–173	90
52	56	3	5,6-dimethyl-benzimidazole	phenacyl	C34H34BrN3O	261–263	90
53	57	3	5,6-dimethyl-benzimidazole	4-methoxyphenacyl	C35H36BrN3O2	228–230	95
54	58	3	5,6-dimethyl-benzimidazole	naphthylacyl	C38H36BrN3O	205–207	96
55	59	3	5,6-dimethyl-benzimidazole	4-bromophenacyl	C34H33Br2N3O	196–198	90
56	60	3	5,6-dimethyl-benzimidazole	4-methylbenzyl	C34H36BrN3	123–125	90
57	61	3	5,6-dimethyl-benzimidazole	2-bromobenzyl	C33H33Br2N3	126–128	90