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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1906734Generated: November 1, 2026

Pyridine → HCID 131715088, compound

https://huagongshe.com/reaction/1906734

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantDimethyl N-cyanodithioiminocarbonateHCID 66289—
ReactantIci 109,081HCID 161928—
ProductHCID 131715088HCID 131715088—

Reaction Steps

(-)-6-(4-Aminophenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone (0.240 g) was stirred with dimethyl cyanodithioiminocarbonate (0.38 g) in dry pyridine (4 ml) under reflux for 6 hours. The reaction mixture was then evaporated down to an oily solid under vacuum at 50° C. Diethyl ether (approx. 20 ml) was added to the reaction mixture and stirred until a solid was obtained. The solid was then filtered and thoroughly washed with diethyl ether (approx. 20 ml) to give the corresponding 6-(4-(N-cyano-S-methylisothioureido)phenyl)-5-methyl-4,5-dihydro-3(2H)-pyridazinone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04654342
Source datasetuspto-grants-1987_03
ORD IDord-be65a897535641fbae6ba4941b064384
Source noteuspto-grants-1987_03