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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 916489Generated: October 30, 2026

Sodium Hydroxide → HCID 21899391, compound

https://huagongshe.com/reaction/916489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 21899392HCID 21899392—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 21899391HCID 21899391—

Reaction Steps

A mixture of the benzyl 2-(5-bromo-4-methyl-2-thienyl)-2-methylpropanoate and sodium hydroxide (0.33 g, 8.3 mmol) in methanol (10 ml) and water (2.5 ml) was heated under reflux for 1 hour. The solvent was evaporated and the residue triturated with 1N hydrochloric acid and then extracted with ethyl acetate. The organic layer was separated, dried over magnesium sulfate and then evaporated to leave 2-(5-bromo-4-methyl-2-thienyl)-2-methylpropanoic acid as a yellow gum which was used in the next step without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07268158B2
Source datasetuspto-grants-2007_09
ORD IDord-ea16918a57134d958f54b3c443abb952
Source noteuspto-grants-2007_09