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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 262033Generated: October 31, 2026

Hydrogen Peroxide → 3-Amino-5-pyrrolidino-thiazolo-(4,5-c)-isothiazole

https://huagongshe.com/reaction/262033

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen PeroxideHCID 784—
Reactant2-Pyrrolidino-4-amino-5-thiocarbamoylthiazoleHCID 12526354—
SolventAcetic AcidHCID 176—
Product3-Amino-5-pyrrolidino-thiazolo-(4,5-c)-isothiazoleHCID 12526370—

Reaction Conditions

Temperature22 °C

Reaction Steps

5 parts of 2-pyrrolidino-4-amino-5-thiocarbamoylthiazole prepared as described in Example 3(a) and 3(b) are suspended in 50 parts of glacial acetic acid and 1 part of 50 percent strength by weight hydrogen peroxide is added at 20° C. Thereupon, the temperature rises to 30° C. After stirring for one hour at 22° C., the end product is precipitated by means of 100 parts of water, and is filtered off. 4.1 parts (82% of theory) of melting point 262°-264° C. are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04153607
Source datasetuspto-grants-1979_05
ORD IDord-6877cc034124450ab2b0f2d7529bbcb2
Source noteuspto-grants-1979_05