ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

Base Information

Chemical Name:ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate
CAS No.:1292827-58-7
Molecular Formula:C₂₃H₂₃N₃O₂
Molecular Weight:373.455
Hs Code.:

Synonyms:ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

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Chemical Property of ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

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Technology Process of ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

There total 1 articles about ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[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: 15.0%

: 5650-07-7
3-methyl-1-phenyl-but-2-en-1-one

: 1572-11-8
5-amino-3-phenyl-1H-pyrazole-4-carboxylic acid ethyl ester

: 1292827-58-7
ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

Guidance literature:: 5-amino-3-phenyl-1H-pyrazole-4-carboxylic acid ethyl ester; With sodium hydride; In N,N-dimethyl-formamide; oil; at 0 ℃;

3-methyl-1-phenyl-but-2-en-1-one; In N,N-dimethyl-formamide; oil; at 0 - 20 ℃;
DOI:10.1016/j.bmc.2011.02.001

Reference yield: 68.0%

: 1292827-58-7
ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

: 1292827-66-7
ethyl 7,7-dimethyl-2,5-diphenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylate

Guidance literature:: With sodium tetrahydroborate; In ethanol; at 0 - 20 ℃;
DOI:10.1016/j.bmc.2011.02.001

Reference yield:

: 1292827-58-7
ethyl 7,7-dimethyl-2,5-diphenyl-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylate

: 1292827-76-9
7,7-dimethyl-2,5-diphenyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid

Guidance literature:: Multi-step reaction with 2 steps

1: sodium tetrahydroborate / ethanol / 0 - 20 °C

2: potassium hydroxide / ethanol; water / 23 h / 80 °C

With sodium tetrahydroborate; potassium hydroxide; In ethanol; water;
DOI:10.1016/j.bmc.2011.02.001