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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 982036Generated: November 1, 2026

Hydrochloric Acid → Nppb

https://huagongshe.com/reaction/982036

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant3-PhenylpropylamineHCID 16259—
Reactant2-Chloro-5-nitrobenzoic acidHCID 17287—
SolventDimethylacetamideHCID 31374—
ProductNppbHCID 4549—

Reaction Steps

A solution of 15.3 g of 2-chloro-5-nitrobenzoic acid and 49 g of 3-phenylpropylamine in 60 ml of dimethylacetamide is heated at 145° C. for 2 hours. After cooling, 300 ml of water are added, and the mixture is acidified (pH 2 to 1) with 2 N HCl.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04994493
Source datasetuspto-grants-1991_02
ORD IDord-b4dbf659a3694623bb7dda461ecb6be5
Source noteuspto-grants-1991_02