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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2085531Generated: November 1, 2026

Acetic Anhydride → HCID 21973825, compound

https://huagongshe.com/reaction/2085531

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantTriethylamineHCID 8471—
ReactantHCID 21973832HCID 21973832—
SolventDichloromethaneHCID 6344—
ProductHCID 21973825HCID 2197382583.1%

Reaction Steps

A solution of gave N1-(2-chloro-5,6-dimethyl-3-nitropyridin-4-yl)-2-methylpropane-1,2-diamine (3.14 g, 10.9 mmol) in 50 mL of CH2Cl2 was cooled to 0° C. under N2 and treated with triethylamine (2.84 mL, 20.4 mmol) and acetic anhydride (1.01 mL, 10.7 mmol). After stirring for 2 h, the reaction was quenched by the addition of saturated aqueous NaHCO3. CH2Cl2 (100 mL) was added and the organic layer was separated. The organic layer was then washed with cold H2O (2×) and brine. The organic portion was dried with Na2SO4 and concentrated to give N-{2-[(2-chloro-5,6-dimethyl-3-nitropyridin-4-yl)amino]-1,1-dimethylethyl}acetamide (2.80 g) as a yellow foam.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06720422B2
Source datasetuspto-grants-2004_04
ORD IDord-18885e1c10ad4bff97d609e28adffe66
Source noteuspto-grants-2004_04