Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 846577Generated: November 1, 2026

Acetic Anhydride → HCID 18993030, compound

https://huagongshe.com/reaction/846577

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantEthyl orthoformateHCID 31214—
Reactant2-(4-Chlorophenyl)ethylamineHCID 67430—
ReactantSodium AcetateHCID 517045—
Reactant2-AMINO-4-METHYL-3-FURONITRILEHCID 11018853—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 18993030HCID 18993030—

Reaction Conditions

Temperature135 °C

Reaction Steps

A mixture of 4.0 g of 2-amino-3-cyano-4-methylfuran, 3 cc of triethylorthoformate, and 0.05 cc of acetic anhydride was heated to 135° C. for three hours. Then 5 g of 2-(4-chlorophenyl)ethylamine, 5 cc of glacial acetic acid, and 3.2 g of sodium acetate were added to the reaction mixture. The temperature of the mixture was maintained at 135° C. for three additional hours, after which the mixture was cooled, treated with water and extracted with dichloromethane. The organic phase was then concentrated and washed with water. The solids were extracted from the organic phase with large volumes of ether, which were combined and concentrated to provide 1.07 g of product. M.P. 140° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05137879
Source datasetuspto-grants-1992_08
ORD IDord-2e7b7a158390417695b48c7e665f1270
Source noteuspto-grants-1992_08