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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27272Generated: October 30, 2026

Methanol → 2-(2-Aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetic acid

https://huagongshe.com/reaction/27272

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTetrahydrofuranHCID 8028—
ReactantEthyl 2-(2-aminothiazol-4-yl)-2-(2-benzoyloxyethoxyimino)acetateHCID 53954764—
SolventSodium HydroxideHCID 14798—
Product2-(2-Aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetic acidHCID 5440347061%

Reaction Conditions

Temperature40 °C

Reaction Steps

A solution of ethyl 2-(2-aminothiazol-4-yl)-2-(2-benzoyloxyethoxyimino)acetate (syn isomer, 8.5 g.) in a mixture of 1 N aqueous sodium hydroxide (35 ml.), methanol (40 ml.) and tetrahydrofuran (40 ml.) was stirred at 40° C. for 9 hrs. and at room temperature for 12 hrs. The reaction mixture was treated in a conventional manner to give 2-(2-aminothiazol-4-yl)-2-(2-hydroxyethoxyimino)acetic acid (syn isomer, 3.3 g.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04220761
Source datasetuspto-grants-1980_09
ORD IDord-89a603e0af304765bbd9342fc21211dd
Source noteuspto-grants-1980_09