4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

Base Information

Chemical Name:4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate
CAS No.:1431654-60-2
Molecular Formula:C₂₁H₁₃F₃N₄O₄
Molecular Weight:442.354
Hs Code.:

Synonyms:4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

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Chemical Property of 4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

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Technology Process of 4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

There total 5 articles about 4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate 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: 87.0%

: 100-02-7,78813-13-5,89830-32-0
4-nitro-phenol

: 1431654-58-8
2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid

: 1431654-60-2
4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

Guidance literature:: 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid; With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In N,N-dimethyl-formamide; at 25 ℃; for 2h;

4-nitro-phenol; In N,N-dimethyl-formamide; at 25 ℃; for 18h;

Reference yield:

: 1431654-55-5
ethyl 2-methyl-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

: 1431654-60-2
4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1.1: trichlorophosphate / 3 h / Reflux

2.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium carbonate / 1,2-dimethoxyethane / 12 h / 100 °C

3.1: water; lithium hydroxide / tetrahydrofuran / 60 h / 25 °C

4.1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 2 h / 25 °C

4.2: 18 h / 25 °C

With dmap; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; water; potassium carbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; lithium hydroxide; trichlorophosphate; In tetrahydrofuran; 1,2-dimethoxyethane; N,N-dimethyl-formamide;

Reference yield:

: 23286-70-6
5-amino-3-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

: 1431654-60-2
4-nitrophenyl 2-methyl-5-(2-(trifluoromethyl)phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate

Guidance literature:: Multi-step reaction with 5 steps

1.1: sodium ethanolate / ethanol / 2 h / 140 °C

2.1: trichlorophosphate / 3 h / Reflux

3.1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium carbonate / 1,2-dimethoxyethane / 12 h / 100 °C

4.1: water; lithium hydroxide / tetrahydrofuran / 60 h / 25 °C

5.1: dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / N,N-dimethyl-formamide / 2 h / 25 °C

5.2: 18 h / 25 °C

With dmap; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; water; sodium ethanolate; potassium carbonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; lithium hydroxide; trichlorophosphate; In tetrahydrofuran; 1,2-dimethoxyethane; ethanol; N,N-dimethyl-formamide;