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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1156717Generated: October 25, 2026

Trichloroacetyl chloride → 5-(N-Methyl-Trichloroacetamido)-3-Trichloromethyl-1,2,4-Thiadiazole

https://huagongshe.com/reaction/1156717

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrichloroacetyl chlorideHCID 6420—
ReactantN-Methyl-3-(trichloromethyl)-1,2,4-thiadiazol-5-amineHCID 13150493—
SolventTolueneHCID 1140—
Product5-(N-Methyl-Trichloroacetamido)-3-Trichloromethyl-1,2,4-ThiadiazoleHCID 1285160292%

Reaction Conditions

Temperature-10 °C

Reaction Steps

A solution of 5.8 grams (0.02 mole) 5-methylamino-3-trichloromethyl-1,2,4-thiadiazole and 9.0 grams (0.05 mole) trichloroacetyl chloride in 200 milliliters toluene was refluxed at about 110° C. for 20 hours. Upon cooling to -10° C., 2.7 grams pure product precipitated; m.p. 223° C. An additional 6.0 grams product was isolated by removal of the low boiling materials in vacuo. Total yield was 92%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04337081
Source datasetuspto-grants-1982_06
ORD IDord-36de979bf96c461c9ee5e39d26fdcd9c
Source noteuspto-grants-1982_06