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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1898433Generated: October 30, 2026

Thionyl Chloride → 2-((2-Chloro-6-fluorophenyl)amino)-N-(4-cyclopropylphenyl)-1,7,7-trimethyl-7,8-dihydro-1H-benzofuro[4,5-d]imidazole-5-carboxamide

https://huagongshe.com/reaction/1898433

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-CyclopropylanilineHCID 12253927—
Reactant2-((2-chloro-6-fluorophenyl)amino)-1,7,7-trimethyl-7,8-dihydro-1H-benzofuro[4,5-d]imidazole-5-carboxylic AcidHCID 67502720—
SolventTetrahydrofuranHCID 8028—
Product2-((2-Chloro-6-fluorophenyl)amino)-N-(4-cyclopropylphenyl)-1,7,7-trimethyl-7,8-dihydro-1H-benzofuro[4,5-d]imidazole-5-carboxamideHCID 6750333013.2%

Reaction Steps

The title compound was prepared following the procedure described for Example-108 using 2-((2-chloro-6-fluorophenyl)amino)-1,7,7-trimethyl-7,8-dihydro-1H-benzofuro[4,5-d]imidazole-5-carboxylic acid (Intermediate-49, 0.100 g, 0.256 mmol), thionyl chloride (2.0 mL), 4-cyclopropyl aniline (0.102 g, 0.769 mmol), THF (5.0 mL) and DIPEA (2 mL). The obtained crude product was purified by column chromatography on basic alumina eluting with 0.7-1.0% MeOH:DCM to afford 0.017 g of the desired product. 1HNMR (DMSO-d6): δ 0.62 (d, J=3.9 Hz, 2H), 0.91 (d, J=6.3 Hz, 2H), 1.60 (s, 6H), 1.88 (m, 1H), 3.45 (s, 2H), 3.55 (s, 3H), 6.98-7.16 (m, 3H), 7.19-7.36 (m, 3H), 7.53 (d, J=8.1 Hz, 2H), 9.60 (s, 1H), 10.48 (s, 1H); MS [M+H]+: 505.26.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08519149B2
Source datasetuspto-grants-2013_08
ORD IDord-39f297b0d4364535a002a72e2f5709ed
Source noteuspto-grants-2013_08