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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1946642Generated: October 31, 2026

Phosphorus oxychloride → HCID 11820387, compound

https://huagongshe.com/reaction/1946642

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant1-Methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dioneHCID 3562387—
ProductHCID 11820387HCID 11820387—

Reaction Steps

The title compound 467 (1.54 g, 8.10 mmol) was heated in phosphorus oxychloride (15 mL) at 95° C. for 2 hours. The reaction mixture was then cooled to room temperature and excess of phosphorus oxychloride was removed under reduced pressure. The black oil was dissolved in ethyl acetate and the organic phase was washed with sodium bicarbonate (saturated solution) and brine, dried over sodium sulfate, filtered and concentrated to afford crude title compound 468 that was used as such for the next step. MS (ESI): 209.12 (MH)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08399452B2
Source datasetuspto-grants-2013_03
ORD IDord-bada80d59e0e4a699dc93632ed40894f
Source noteuspto-grants-2013_03