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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1363354Generated: October 25, 2026

Sodium hydride → (+)-trans-8-(2-Hydroxymethyl-1-methyl-pyrrolidin-3-yl)-5,7-dimethoxy-2-(4-trifluoromethyl-phenyl)-chromen-4-one

https://huagongshe.com/reaction/1363354

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantMethyl 4-(trifluoromethyl)benzoateHCID 520447—
Reactant(-)-trans-1-[2-Hydroxy-3-(2-hydroxymethyl-1-methyl-pyrrolidin-3-yl)-4,6-dimethoxyphenyl]-1-ethanoneHCID 59318484—
SolventDimethylformamideHCID 6228—
Product(+)-trans-8-(2-Hydroxymethyl-1-methyl-pyrrolidin-3-yl)-5,7-dimethoxy-2-(4-trifluoromethyl-phenyl)-chromen-4-oneHCID 66933632—

Reaction Steps

Compound of example 6 (1.5 g, 4.84 mmol) in dry DMF (15 mL) was reacted with methyl 4-trifluoromethylbenzoate (3.27 g, 16.02 mmol) in the presence of NaH (50%, 1.2 g, 25 mmol) as described in example 16, to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07884127B2
Source datasetuspto-grants-2011_02
ORD IDord-910d8171c19b4586b97e24f691c06dc4
Source noteuspto-grants-2011_02