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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2198555Generated: October 31, 2026

Diethyl Ether → HCID 13071635, compound

https://huagongshe.com/reaction/2198555

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantTriethylamineHCID 8471—
ReactantMethyl IsocyanateHCID 12228—
ReactantHCID 178418558HCID 178418558—
ProductHCID 13071635HCID 13071635—

Reaction Conditions

Temperature25 °C

Reaction Steps

A solution of 7.5 g (0.05 mole) of 1,3,4- thiadiazole-2,5-dithiol (DMTD) was stirred in 700 ml of anhydrous ether in a 3-necked round-bottom flask equipped with a thermometer, a reflux condenser, a dropping funnel, and a magnetic stirrer. The solution was maintained at below 25° C. by cooling while 5.9 ml (0.1 mole) of methyl isocyanate and 0.2 ml of triethylamine were added dropwise. The reaction mixture was stirred at 25° C. for 48 hours. The yellow-solid crystals were collected on a filter, washed with ether and dried. The product was 8.2 grams (62 mole % yield) m.p. 162° C., 2,5-bis(N-methylcarbamylthio)-1,3,4-thiadiazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04358597
Source datasetuspto-grants-1982_11
ORD IDord-239e219573cc424eba6038ac711b3d22
Source noteuspto-grants-1982_11