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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4308Generated: October 28, 2026

Sodium Carbonate → 2-(2-Pyridyl)thiazolo[3,2-a]benzimidazole

https://huagongshe.com/reaction/4308

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
ReactantHCID 178418496HCID 178418496—
Product2-(2-Pyridyl)thiazolo[3,2-a]benzimidazoleHCID 1439178637.5%

Reaction Steps

A solution of 2-mercapto-1-[2-oxo-2-(2-pyridyl)ethyl]benzimidazole (1 g.) in polyphosphoric acid was heated at 140° C. for 1 hour. The solution was neutralised with Na2CO3 solution and extracted into EtOAc (700 ml). The extracts were dried (MgSO4) and evaporated to give a solid which was recrystallised from EtOAc/EtOH to give the title compound (0.35 g.) mp 222°-4° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04725605
Source datasetuspto-grants-1988_02
ORD IDord-374e80436b6f4dea998738769e836db4
Source noteuspto-grants-1988_02