3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

Base Information

Chemical Name:3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole
CAS No.:1085450-57-2
Molecular Formula:C₂₀H₁₇BrN₄O
Molecular Weight:409.285
Hs Code.:

Synonyms:3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

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Chemical Property of 3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

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Technology Process of 3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

There total 4 articles about 3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole 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: 45.0%

: 856905-30-1
5-methyl-1-(4-methylbenzyl)-1H-pyrazole-3-carboxylic acid

: 19227-14-6,69113-23-1
p-bromobenzamidoxime

: 1085450-57-2
3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

Guidance literature:: 5-methyl-1-(4-methylbenzyl)-1H-pyrazole-3-carboxylic acid; With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In N,N-dimethyl-formamide; at 20 ℃; for 0.5h;

p-bromobenzamidoxime; In N,N-dimethyl-formamide; at 140 ℃; for 2h;
DOI:10.1002/cmdc.201300357

Reference yield:

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

: 1085450-57-2
3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

Guidance literature:: Multi-step reaction with 2 steps

1.1: water; sodium hydroxide / ethanol / 15 h / 70 °C

2.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol / N,N-dimethyl-formamide / 0.5 h / 20 °C

2.2: 2 h / 140 °C

With water; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; sodium hydroxide; In ethanol; N,N-dimethyl-formamide;
DOI:10.1002/cmdc.201300357

Reference yield:

: 20577-61-1
methyl 2,4-dioxopentanoate

: 1085450-57-2
3-(4-bromophenyl)-5-[5-methyl-1-(4-methylbenzyl)-1H-pyrazol-3-yl]-1,2,4-oxadiazole

Guidance literature:: Multi-step reaction with 3 steps

1.1: acetic acid / 4 h / 90 °C

2.1: water; sodium hydroxide / ethanol / 15 h / 70 °C

3.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol / N,N-dimethyl-formamide / 0.5 h / 20 °C

3.2: 2 h / 140 °C

With water; benzotriazol-1-ol; acetic acid; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; sodium hydroxide; In ethanol; N,N-dimethyl-formamide;
DOI:10.1002/cmdc.201300357