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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 627836Generated: October 26, 2026

Lithium Hydroxide → 8-Bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxylic acid

https://huagongshe.com/reaction/627836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantMethyl 8-bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxylateHCID 56833843—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product8-Bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxylic acidHCID 57900163—

Reaction Steps

Methyl 8-bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxylate 10 was treated with lithium hydroxide in water and tetrahydrofuran (THF) to give 11.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09309265B2
Source datasetuspto-grants-2016_04
ORD IDord-75b05770d9b54009be135569e6456ab0
Source noteuspto-grants-2016_04