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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1659738Generated: November 3, 2026

Acetic Anhydride → 2-(2-Formamidothiazol-4-yl)-2-ethoxyiminoacetic acid

https://huagongshe.com/reaction/1659738

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant2-(2-Amino-4-thiazolyl)-2-ethoxyiminoacetic acidHCID 53424235—
SolventFormic AcidHCID 284—
Product2-(2-Formamidothiazol-4-yl)-2-ethoxyiminoacetic acidHCID 5445807787.7%

Reaction Steps

2-Ethoxyimino-2-(2-aminothiazol-4-yl)acetic acid (syn isomer) (100 g), formic acid (85.5 g) and acetic anhydride (190.1 g) were treated in a similar manner to that of Preparation 12 to give 2-ethoxyimino-2-(2-formamidothiazol-4-yl)acetic acid (syn isomer) (99.1 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04304770
Source datasetuspto-grants-1981_12
ORD IDord-a4f5060bc6164b36bfbcd7cf19ee1798
Source noteuspto-grants-1981_12