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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1578552Generated: October 30, 2026

Ethanol → HCID 21559438, compound

https://huagongshe.com/reaction/1578552

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantIsobutyraldehydeHCID 6561—
ReactantMethanesulfenyl chloride, trifluoro-HCID 67900—
SolventDichloromethaneHCID 6344—
ProductHCID 21559438HCID 21559438—

Reaction Conditions

Temperature-78 °C

Reaction Steps

A mixture of isobutyraldehyde (0.25 mole), ethanol (0.4 g) and dichloromethane (75 ml) was placed in a three-necked flask fitted with a gas inlet tube, a Dry Ice condenser and a gas outlet tube connected to a gas trap cooled to -78°C. Trifluoromethanesulfenyl chloride (0.22 mole) was added to the cold solution which was maintained under a nitrogen atmosphere. (Caution: It should be noted that trifluoromethanesulfenyl chloride is a highly hazardous material which must be handled with care to avoid inhalation or contact with the skin.) The reaction mixture was then allowed to warm to about 25°C and stirred magnetically until the orange colored solution had become nearly colorless (about 6 hours). The reaction mixture was then distilled. The distillation assembly was connected to a -78°C gas trap to trap any unreacted trifluoromethylsulfenyl chloride. The 2-trifluoromethylthio-2-methylpropionaldehyde, b.p. 108°-116°C was identified by spectral and elemental analyses of a purified sample, b.p. 116°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03937738
Source datasetuspto-grants-1976_02
ORD IDord-72c10ed24fea47b58481d8a4ebf47829
Source noteuspto-grants-1976_02