3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

Base Information

Chemical Name:3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine
CAS No.:1338727-99-3
Molecular Formula:C₂₂H₂₅ClF₂N₄O
Molecular Weight:434.917
Hs Code.:

Synonyms:3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

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Chemical Property of 3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

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Technology Process of 3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

There total 7 articles about 3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine 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: 56.0%

: 75-45-6
Chlorodifluoromethane

: 857262-72-7
3-chloro-4-[8-(1-ethylpropylamino)-2-methyl-6,7-dihydro-5H-1,4,8a-triaza-s-indacen-3-yl]-phenol

: 1338727-99-3
3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

Guidance literature:: With sodium hydroxide; In tetrahydrofuran; water; at 70 ℃; for 3h;
DOI:10.1016/j.bmc.2011.07.055

Reference yield:

: 817636-90-1
8-hydroxy-2-methyl-3-(2-chloro-4-methoxyphenyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine

: 1338727-99-3
3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

Guidance literature:: Multi-step reaction with 4 steps

1.1: N,N-diethylaniline; trichlorophosphate / toluene / 5 h / 20 °C / Reflux

2.1: isopropyl alcohol / 4 h / 20 - 90 °C

3.1: boron tribromide / dichloromethane / 5.5 h / -50 - 0 °C / Inert atmosphere

3.2: 0 °C / Inert atmosphere

4.1: sodium hydroxide / tetrahydrofuran; water / 3 h / 70 °C

With boron tribromide; N,N-diethylaniline; sodium hydroxide; trichlorophosphate; In tetrahydrofuran; dichloromethane; water; isopropyl alcohol; toluene;
DOI:10.1016/j.bmc.2011.07.055

Reference yield:

: 817636-91-2
8-chloro-2-methyl-3-(2-chloro-4-methoxyphenyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine

: 1338727-99-3
3-[2-chloro-4-(difluoromethoxy)phenyl]-N-(1-ethylpropyl)-2-methyl-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-amine

Guidance literature:: Multi-step reaction with 3 steps

1.1: isopropyl alcohol / 4 h / 20 - 90 °C

2.1: boron tribromide / dichloromethane / 5.5 h / -50 - 0 °C / Inert atmosphere

2.2: 0 °C / Inert atmosphere

3.1: sodium hydroxide / tetrahydrofuran; water / 3 h / 70 °C

With boron tribromide; sodium hydroxide; In tetrahydrofuran; dichloromethane; water; isopropyl alcohol;
DOI:10.1016/j.bmc.2011.07.055