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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079049Generated: October 29, 2026

Lawesson's reagent → HCID 57900186, compound

https://huagongshe.com/reaction/2079049

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
Reactant8-bromo-N-(2-chlorophenyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamideHCID 57900159—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 57900186HCID 57900186116%

Reaction Conditions

Temperature85 °C

Reaction Steps

A solution of 8-bromo-N-(2-chlorophenyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamide (10 g, 0.023 mol) in anhydrous 1,4-dioxane (400 mL) was treated with Lawesson's reagent (7.44 g, 0.018 mol) and heated at 85° C. for 4 h. The orange solution was cooled to room temperature and concentrated in vacuo. The crude product was washed with CH2Cl2 and then dried to give 8-bromo-N-(2-chlorophenyl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carbothioamide as a yellow solid (9.41 g, yield 91%). ESI-MS: 449.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07928248B2
Source datasetuspto-grants-2011_04
ORD IDord-881e504c2cff444d9f6299047259d106
Source noteuspto-grants-2011_04