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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2418180Generated: November 3, 2026

2-Aminothiazole → 7-(Chloromethyl)-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one

https://huagongshe.com/reaction/2418180

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-AminothiazoleHCID 2155—
ReactantEthyl 4-chloroacetoacetateHCID 69484—
Product7-(Chloromethyl)-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-oneHCID 2063597—

Reaction Steps

The intermediate 7-(chloromethyl)-5H-thiazolo[3,2-a]pyrimidin-5-one was prepared from 2-thiazolamine and ethyl 4-chloroacetoacetate by the procedure described in EXAMPLE 1. The m.p. was 132°-136° C., and the structure was confirmed by NMR and IR.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04472389
Source datasetuspto-grants-1984_09
ORD IDord-8fd5dd9c9ac14019ab90eb2b346acb9c
Source noteuspto-grants-1984_09