tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate

Base Information

• Chemical Name: tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate
• CAS No.: 1288961-03-4
• Molecular Formula: C₁₇H₁₇Cl₂N₃O₃
• Molecular Weight: 382.246

Synonyms:tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate

Chemical Property of tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate

Chemical Property:

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Technology Process of tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate

There total 2 articles about tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate 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:

3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazole-7-carboxylic acid (1288961-01-2) + tert-butyl alcohol (75-65-0) → tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate (1288961-03-4)

Guidance literature:

With diphenyl phosphoryl azide; triethylamine; In toluene; at 110 ℃; for 1.33333h;

Reference yield:

ethyl 3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazole-7-carboxylate (1288960-98-4) → tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate (1288961-03-4)

Guidance literature:

Multi-step reaction with 2 steps

1: sodium hydroxide; water / ethanol / 3.5 h / 60 - 85 °C

2: triethylamine; diphenyl phosphoryl azide / toluene / 1.33 h / 110 °C

With diphenyl phosphoryl azide; water; triethylamine; sodium hydroxide; In ethanol; toluene;

Reference yield:

tert-butyl [3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate (1288961-03-4) + cyclopropylcarbinyl bromide (7051-34-5) → tert-butyl (cyclopropylmethyl)[3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate (1288961-12-5)

Guidance literature:

With sodium hydride; In N,N-dimethyl-formamide; at 10 - 35 ℃; for 1h;

upstream raw materials:

3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazole-7-carboxylic acid

tert-butyl alcohol

ethyl 3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazole-7-carboxylate

Downstream raw materials:

tert-butyl (cyclopropylmethyl)[3-(2,4-dichlorophenyl)-6-methylpyrazolo[5,1-b][1,3]oxazol-7-yl]carbamate

N-(cyclopropylmethyl)-3-(2,4-dichlorophenyl)-6-methyl-N-(tetrahydro-2H-pyran-4-ylmethyl)pyrazolo[5,1-b][1,3]oxazole-7-amine

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