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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 620168Generated: October 27, 2026

Water → HCID 178488135, compound

https://huagongshe.com/reaction/620168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant4-Chloromethyl-5-methyl-6-piperidino pyrimidine hydrochlorideHCID 21245798—
ReactantHCID 178488032HCID 178488032—
SolventEthanolHCID 702—
ProductHCID 178488135HCID 178488135—

Reaction Steps

A mixture of 4-chloromethyl-5-methyl-6-piperidino pyrimidine hydrochloride (4.63 g) and 2-mercapto-5-methoxybenzimidazole (3.18 g) in ethanol (180 ml) were heated at 50° for 5 hours. The solution was stripped to a residual glass, to which water was added, the pH raised to 13 (NaOH), and extracted with chloroform. Extracts were dried (K2CO3) and stripped to a residual glass which crystallised from ethyl acetate to give 5-methoxy-2-(5-methyl-6-piperidino-4-pyrimidinylmethylthio)-(1H)-benzimidazole, 5.67 g, m.p. 94°-96°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04820708
Source datasetuspto-grants-1989_04
ORD IDord-f0b3cf19a26540c096a9c51b2ed7d5be
Source noteuspto-grants-1989_04