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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1578855Generated: November 1, 2026

Ethanethiol → HCID 54553130, compound

https://huagongshe.com/reaction/1578855

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanethiolHCID 6343—
ReactantSodium HydroxideHCID 14798—
Reactant2,4-DICHLOROPYRIDO[3,2-D]PYRIMIDINEHCID 11958053—
SolventAcetoneHCID 180—
SolventWaterHCID 962—
ProductHCID 54553130HCID 5455313065%

Reaction Steps

A suspension of 15 gm (0.075 mol) of 2,4-dichloropyrido[3,2-d]pyrimidine in 100 ml of acetone at -40°C was admixed with a solution of 3.2 gm (0.08 mol) of sodium hydroxide and 4.9 gm (5.8 ml) of ethylmercaptan in 25 ml of water, and the mixture was stirred for two hours at room temperature. Thereafter, 200 ml of water were added to the reaction mixture, and the precipitate formed thereby was collected and recrystallized from petroleum ether, yielding 11.0 gm (65% of theory) of 2-chloro-4-ethylmercapto-pyrido[3,2-d]pyrimidine, m.p. 101°-103°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03939268
Source datasetuspto-grants-1976_02
ORD IDord-a75d9329604c4255b2c6c06a9e159a1c
Source noteuspto-grants-1976_02