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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2203092Generated: October 31, 2026

Triphenylphosphine → 1-(2-Ethyl-1-methyl-1H-benzimidazol-6-yl)-4-((5-(trifluoromethyl)-3-thienyl)methoxy)pyridin-2(1H)-one

https://huagongshe.com/reaction/2203092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriphenylphosphineHCID 11776—
Reactant5-(Trifluoromethyl)-3-thiophenemethanolHCID 19957393—
Reactant2-methoxyethyl N-(2-methoxyethoxycarbonylimino)carbamateHCID 53384415—
Reactant1-(2-Ethyl-1-methyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-oneHCID 89690998—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product1-(2-Ethyl-1-methyl-1H-benzimidazol-6-yl)-4-((5-(trifluoromethyl)-3-thienyl)methoxy)pyridin-2(1H)-oneHCID 8969110514.5%

Reaction Steps

To a solution of 1-(2-ethyl-1-methyl-1H-benzimidazol-6-yl)-4-hydroxypyridin-2(1H)-one (300 mg), (5-(trifluoromethyl)-3-thienyl)methanol (352 mg) and triphenylphosphine (877 mg) in THF (10 ml) was added bis(2-methoxyethyl) azodicarboxylate (783 mg), and the mixture was stirred at room temperature for 3 h. The mixture was poured into water and extracted with EtOAc. The extract was washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (hexane/EtOAc then EtOAc/MeOH). The resulting solid was recrystallized from IPA-IPE to give the title compound (70.0 mg) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365540B2
Source datasetuspto-grants-2016_06
ORD IDord-e6b4d7188faa4b1e829239c5ffe2c4f7
Source noteuspto-grants-2016_06