6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

Base Information

Chemical Name:6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole
CAS No.:1085451-26-8
Molecular Formula:C₁₉H₁₇BrN₄
Molecular Weight:381.275
Hs Code.:

Synonyms:6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

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Chemical Property of 6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

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Technology Process of 6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

There total 6 articles about 6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 48.0%

: 1085454-04-1
5-methyl-1-(4-methylbenzyl)-1H-pyrazole-3-carbaldehyde

: 1575-37-7
4-Bromo-benzene-1,2-diamine

: 1085451-26-8
6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

Guidance literature:: With sodium hydrogen sulfite; In N,N-dimethyl-formamide; at 110 ℃; for 5h;

Reference yield:

: 1085453-43-5
tert-butyl 2-isopropylidene-1-(4-methylbenzyl)hydrazine-carboxylate

: 1085451-26-8
6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

Guidance literature:: Multi-step reaction with 5 steps

1.1: hydrogenchloride; water / tetrahydrofuran / 3 h / Heating / reflux

2.1: acetic acid / 4 h / 90 °C

3.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 - 20 °C

4.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / 2 h / -78 °C

4.2: 0.33 h / 0 °C

5.1: sodium hydrogen sulfite / N,N-dimethyl-formamide / 5 h / 110 °C

With hydrogenchloride; sodium hydrogen sulfite; lithium aluminium tetrahydride; oxalyl dichloride; water; acetic acid; dimethyl sulfoxide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;

Reference yield:

: 1085453-45-7
methyl 5-methyl-1-(4-methylbenzyl)-1H-pyrazole-3-carboxylate

: 1085451-26-8
6-bromo-2-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1H-benzimidazole

Guidance literature:: Multi-step reaction with 3 steps

1.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / 0 - 20 °C

2.1: oxalyl dichloride; dimethyl sulfoxide / dichloromethane / 2 h / -78 °C

2.2: 0.33 h / 0 °C

3.1: sodium hydrogen sulfite / N,N-dimethyl-formamide / 5 h / 110 °C

With sodium hydrogen sulfite; lithium aluminium tetrahydride; oxalyl dichloride; dimethyl sulfoxide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;