(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

Base Information

Chemical Name:(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine
CAS No.:1364889-79-1
Molecular Formula:C₁₆H₁₂BrF₃N₄
Molecular Weight:397.197
Hs Code.:

Synonyms:(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

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Chemical Property of (R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

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Technology Process of (R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

There total 7 articles about (R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine 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:

: 1364890-59-4
(R)-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

: 1364889-79-1
(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

Guidance literature:: With N-Bromosuccinimide; In acetonitrile; at 0 ℃; for 2h;

Reference yield:

: 1223404-92-9
(2R,4R)-tert-butyl 2-(3-fluorophenyl)-4-hydroxypyrrolidine-1-carboxylate

: 1364889-79-1
(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

Guidance literature:: Multi-step reaction with 5 steps

1.1: trichloroisocyanuric acid / 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical / dichloromethane / 1.25 h / -10 - 20 °C

2.1: diethylamino-sulfur trifluoride / dichloromethane / 2.5 h / -78 - 20 °C / Plastic bottle

3.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C

3.2: 0 °C

4.1: N-ethyl-N,N-diisopropylamine / ethanol / 1 h / 140 °C / Microwave irradiation

5.1: N-Bromosuccinimide / acetonitrile / 2 h / 0 °C

With N-Bromosuccinimide; diethylamino-sulfur trifluoride; trichloroisocyanuric acid; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; In ethanol; dichloromethane; acetonitrile;

Reference yield:

: 1364889-98-4
tert-butyl (2R)-2-(tert-butyldimethylsilyloxy)-4-(3-fluorophenyl)-4-hydroxybutylcarbamate

: 1364889-79-1
(R)-3-bromo-5-(4,4-difluoro-2-(3-fluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidine

Guidance literature:: Multi-step reaction with 7 steps

1.1: triethylamine; methanesulfonyl chloride / dichloromethane / 1 h / -60 °C / Inert atmosphere

2.1: tetrabutyl ammonium fluoride / tetrahydrofuran / 2 h / 20 °C

2.2: 20 °C

3.1: trichloroisocyanuric acid / 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical / dichloromethane / 1.25 h / -10 - 20 °C

4.1: diethylamino-sulfur trifluoride / dichloromethane / 2.5 h / -78 - 20 °C / Plastic bottle

5.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C

5.2: 0 °C

6.1: N-ethyl-N,N-diisopropylamine / ethanol / 1 h / 140 °C / Microwave irradiation

7.1: N-Bromosuccinimide / acetonitrile / 2 h / 0 °C

With N-Bromosuccinimide; diethylamino-sulfur trifluoride; trichloroisocyanuric acid; tetrabutyl ammonium fluoride; methanesulfonyl chloride; triethylamine; N-ethyl-N,N-diisopropylamine; trifluoroacetic acid; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; In tetrahydrofuran; ethanol; dichloromethane; acetonitrile;