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

HRID 1293840Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:14]=[C:13]([C:15]([F:18])([F:17])[F:16])[N:12]3[N:19]=[CH:20][C:21]([C:22]#[CH:23])=[C:11]3[N:10]=2)[CH:5]=[CH:6][C:7]=1[Cl:8].Br[C:25]1[CH:30]=[CH:29][C:28]([S:31]([NH2:34])(=[O:33])=[O:32])=[CH:27][CH:26]=1>>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:14]=[C:13]([C:15]([F:16])([F:17])[F:18])[N:12]3[N:19]=[CH:20][C:21]([C:22]#[C:23][C:25]4[CH:30]=[CH:29][C:28]([S:31]([NH2:34])(=[O:33])=[O:32])=[CH:27][CH:26]=4)=[C:11]3[N:10]=2)[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

Reactant 2

HCID 696964-Bromobenzenesulfonamide

HCID 866080515-(3,4-Dichloro-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine

Product 1

HCID 670011034-[5-(3,4-Dichloro-phenyl)-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-benzenesulfonamide

Procedure

The title compound was prepared from 5-(3,4-dichloro-phenyl)-3-ethynyl-7-trifluoromethyl-pyrazolo[1,5-a]pyrimidine (example C.9) (89 mg, 0.25 mmol) and 4-bromo-benzenesulfonamide (59 mg, 0.25 mmol) according to general procedure II. Obtained as a yellow solid (43 mg, 33%). MS (ISN) 509.0 [(M−H)−]; mp 273–274° C.

Sources & evidence

ORD record: ord-3e88b3c1e9474146ae0485b431b783e3
Source dataset: uspto-grants-2007_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07238808B2

Reaction notes

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