Thionyl Chloride → HCID 118431655, compound

HRID 2207930Notes

Reaction equation

[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[Cl:19])[N:11]=[C:10]([C:20](O)=[O:21])[CH2:9]2)=[C:4]([F:23])[CH:3]=1.S(Cl)([Cl:26])=O>>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[Cl:19])[N:11]=[C:10]([C:20]([Cl:26])=[O:21])[CH2:9]2)=[C:4]([F:23])[CH:3]=1

Participants

Reactant 2

HCID 24386Thionyl Chloride

HCID 118431938HCID 118431938, compound

Product 1

HCID 118431655HCID 118431655, compound

Conditions

Temperature: 100 °C

Procedure

5-(4-Bromo-2-fluoro-phenyl)-1-(2-chloro-phenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid (2.5 g, 6.3 mmol) prepared in Step 4 was added to thionyl chloride (30.0 mL). The reaction mixture was stirred at 100° C. for 2 hours and then concentrated under reduced pressure. The resulting residue was concentrated under reduced pressure three times, along with using toluene, to give 5-(4-bromo-2-fluoro-phenyl)-1-(2-chloro-phenyl)-4,5-dihydro-1H-pyrazole-3-carbonyl chloride as a dark brown liquid.

Workup

concentrationconcentrated under reduced pressure
concentrationThe resulting residue was concentrated under reduced pressure three times, along with using toluene

Sources & evidence

ORD record: ord-334fda26236e41d8aaef2eba197eaa06
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09376420B2

Reaction notes

Loading…