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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1668567Generated: October 30, 2026

Dimethylformamide → Oxalyl chloride

https://huagongshe.com/reaction/1668567

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantChlorobenzeneHCID 7964—
Reactant3,3,3-Trifluoropropionyl chlorideHCID 2783343—
Reactant1,1-Dimethylethyl 7-amino-8-hydroxy-1,2,4,5-tetrahydro-3H-3-benzazepine-3-carboxylateHCID 59150472—
ProductOxalyl chlorideHCID 65578—
Product3,3,3-Trifluoropropionic acidHCID 2777972—
Product2-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,3]oxazolo[4,5-h][3]benzazepineHCID 59150496—

Reaction Steps

The title compound was prepared as described in General Procedure 2 from 1,1-dimethylethyl 7-amino-8-hydroxy-1,2,4,5-tetrahydro-3H-3-benzazepine-3-carboxylate and 3,3,3-trifluoropropanoyl chloride. The latter reactant had been obtained in chlorobenzene solution from the reaction of 3,3,3-trifluoropropanoic acid with oxalyl chloride (1 eq.) in the presence of a catalytic quantity of DMF.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07989444B2
Source datasetuspto-grants-2011_08
ORD IDord-4394e2537b9c401f8d35b76812a2d200
Source noteuspto-grants-2011_08