4-Bromobenzenesulfonamide → 3-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

HRID 269174Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[C:12]([C:14]([F:17])([F:16])[F:15])[N:11]3[N:18]=[CH:19][C:20]([C:21]#[CH:22])=[C:10]3[N:9]=2)=[CH:4][CH:3]=1.Br[C:24]1[CH:29]=[CH:28][C:27]([S:30]([NH2:33])(=[O:32])=[O:31])=[CH:26][CH:25]=1>>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:13]=[C:12]([C:14]([F:15])([F:17])[F:16])[N:11]3[N:18]=[CH:19][C:20]([C:21]#[C:22][C:25]4[CH:26]=[C:27]([S:30]([NH2:33])(=[O:32])=[O:31])[CH:28]=[CH:29][CH:24]=4)=[C:10]3[N:9]=2)=[CH:4][CH:3]=1

Participants

Reactant 2

HCID 696964-Bromobenzenesulfonamide

HCID 866079955-(4-Chloro-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine

Product 1

HCID 118527223-[5-(4-Chloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

Procedure

The title compound was prepared from 5-(4-Chloro-phenyl)-3-ethynyl-7-trifluoromethyl pyrazolo[1,5-a]pyrimidine (example C.4) (322 mg, 1.0 mmol) and 4-bromo-benzenesulfonamide (236 mg, 1.0 mmol) according to general procedure II. Obtained as a yellow solid (320 mg, 67%). MS (ISP) 477.0 [(M+H)+]; mp 290-293° C.

Sources & evidence

ORD record: ord-a9301d5446cb400e904c129b3fabd07b
Source dataset: uspto-grants-2008_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07446113B2

Reaction notes

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