(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

Base Information

Chemical Name:(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile
CAS No.:1333257-43-4
Molecular Formula:C₁₅H₁₁ClN₄O
Molecular Weight:298.732
Hs Code.:

Synonyms:(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

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Chemical Property of (+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

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Technology Process of (+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

There total 4 articles about (+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile 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: 61.0%

: 1333257-54-7
(+/-)-5,7-dichloro-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

: 1333257-43-4
(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

Guidance literature:: (+/-)-5,7-dichloro-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile; With sodium hydroxide; In tetrahydrofuran; water; at 25 ℃; for 14h;

With hydrogenchloride; In tetrahydrofuran; water; pH=1;
DOI:10.1002/anie.201102281

Reference yield:

: 1333257-51-4
(+/-)-5,7-dihydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

: 1333257-43-4
(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

Guidance literature:: Multi-step reaction with 2 steps

1.1: trimethylamine hydrochloride; trichlorophosphate / 16 h / 110 °C

2.1: sodium hydroxide / tetrahydrofuran; water / 14 h / 25 °C

2.2: pH 1

With trimethylamine hydrochloride; sodium hydroxide; trichlorophosphate; In tetrahydrofuran; water;
DOI:10.1002/anie.201102281

Reference yield:

: 14618-12-3
diethyl (1-phenylethyl)malonate

: 1333257-43-4
(+/-)-5-chloro-7-hydroxy-6-(1-phenylethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile

Guidance literature:: Multi-step reaction with 3 steps

1.1: tributyl-amine / 16 h / 150 °C

1.2: 0.08 h / 50 °C

1.3: pH 1

2.1: trimethylamine hydrochloride; trichlorophosphate / 16 h / 110 °C

3.1: sodium hydroxide / tetrahydrofuran; water / 14 h / 25 °C

3.2: pH 1

With tributyl-amine; trimethylamine hydrochloride; sodium hydroxide; trichlorophosphate; In tetrahydrofuran; water;
DOI:10.1002/anie.201102281