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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 902996Generated: October 30, 2026

Pyrrolidine → HCID 23337277, compound

https://huagongshe.com/reaction/902996

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant1,2,4-Thiadiazole, 5-chloro-3-(trichloromethyl)-HCID 79930—
SolventDiethyl EtherHCID 3283—
ProductHCID 23337277HCID 23337277—

Reaction Steps

To 14.2 grams (0.2 mole) pyrrolidine in 100 milliliters ether was added 23.8 grams (0.1 mole) 3-trichloromethyl-5-chloro-1,2,4-thiadiazole in 100 milliliters ether. The solution was refluxed with stirring for one hour after addition. Filtration to remove salt by-products yielded a clear filtrate which was concentrated on a steam bath to give 16.4 grams (60% molar yield) of white solid. Recrystallization from ligroin yielded a pure product (melting point 105.5°-107° C.). The structure was confirmed via infrared and elemental analysis. Analysis for C7H8N3Cl3S:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04226609
Source datasetuspto-grants-1980_10
ORD IDord-4e7f432a75e4400c9d8e9ecf3130a98c
Source noteuspto-grants-1980_10