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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1422232Generated: October 30, 2026

Acetic Anhydride → N-(2,3-Dimethoxy-7-nitro-quinoxalin-5-ylmethyl)-acetamide

https://huagongshe.com/reaction/1422232

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantTriethylamineHCID 8471—
Reactant5-Aminomethyl-2,3-dimethoxy-7-nitro-quinoxalineHCID 17915296—
Reactant5-Bromomethyl-7-nitro-2,3-dimethoxyquinoxalineHCID 23297983—
SolventDiethyl EtherHCID 3283—
SolventDiethylformamideHCID 12051—
ProductN-(2,3-Dimethoxy-7-nitro-quinoxalin-5-ylmethyl)-acetamideHCID 18706427—

Reaction Steps

111 mg (0.437 mmol) of 5-aminomethyl-2,3-dimethoxy-7-nitro-quinoxaline, obtainable in a manner analogous to that described in Example 9 but starting from 5-bromomethyl-2,3-dimethoxy-7-nitro-quinoxaline, are stirred with 0.046 ml (1.1 equiv.) of acetic anhydride and 0.073 ml (1.2 equiv.) of triethylamine in 5 ml of N,N-diethylformamide at room temperature for 24 hours. The reaction mixture is diluted with diethyl ether, and the solid is filtered off, washed with diethyl ether and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06080743
Source datasetuspto-grants-2000_06
ORD IDord-390f1566680049a9818d0fcf93d57184
Source noteuspto-grants-2000_06