2-Chloro-4-(trifluoromethyl)benzenesulfonyl chloride → 2-(1-{[2-Chloro-4-(trifluoromethyl)phenyl]sulfonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

HRID 524230Notes

Reaction equation

HRID 524230 reaction equation
Cl.[CH3:2][O:3][C:4]1[CH:5]=[C:6]([C:12]2[C:13]([CH3:25])([CH3:24])[C:14](=[O:23])[N:15]([CH:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)[N:16]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH3:11].[Cl:26][C:27]1[CH:32]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:30]=[CH:29][C:28]=1[S:37](Cl)(=[O:39])=[O:38]>>[Cl:26][C:27]1[CH:32]=[C:31]([C:33]([F:35])([F:34])[F:36])[CH:30]=[CH:29][C:28]=1[S:37]([N:20]1[CH2:21][CH2:22][CH:17]([N:15]2[C:14](=[O:23])[C:13]([CH3:25])([CH3:24])[C:12]([C:6]3[CH:7]=[CH:8][C:9]([O:10][CH3:11])=[C:4]([O:3][CH3:2])[CH:5]=3)=[N:16]2)[CH2:18][CH2:19]1)(=[O:39])=[O:38]

Participants

3

Reactant 2

HCID 27366752-Chloro-4-(trifluoromethyl)benzenesulfonyl chlorideHCID 666164065-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochloride2×

Product 1

HCID 673652052-(1-{[2-Chloro-4-(trifluoromethyl)phenyl]sulfonyl}piperidin-4-yl)-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

Procedure

The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B1) and 2-chloro-4-(trifluoromethyl)benzenesulfonyl chloride as starting compounds. The crude product is purified by crystallization from EA and diethyl ether to yield the title compound.

Workup

  1. customThe title compound is prepared analogously
  2. customThe crude product is purified by crystallization from EA and diethyl ether

Sources & evidence

ORD record
ord-7b264fc6ac4c4f38834b7db32bf9fcc3
Source dataset
uspto-grants-2016_05
Patent number
US09340522B2

Reaction notes

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