Isobutyric Acid → 4-Methyl-1,2lambda~6~-oxathiolane-2,2,5-trione

HRID 613967Notes

Reaction equation

HRID 613967 reaction equation
[C:1]([OH:6])(=[O:5])[CH:2]([CH3:4])[CH3:3].[S:7](Cl)(Cl)(=[O:9])=[O:8]>[W]>[CH3:3][CH:2]1[C:1](=[O:6])[O:5][S:7](=[O:9])(=[O:8])[CH2:4]1

Participants

4

Reactant 2

HCID 6590Isobutyric AcidHCID 24648Sulfuryl chloride

Product 1

HCID 213296154-Methyl-1,2lambda~6~-oxathiolane-2,2,5-trione

Reagents, catalysts & solvents 1

HCID 23964TungstenCatalyst

Procedure

88 g. of isobutyric acid dissolved in 100 g. of sulfuryl chloride is heated at 80° C. and irradiated with a 300 watt tungsten lamp for 2 hours. Addition of ligroin precipitates an oil which has a boiling range 135°-140° at 4mm and is identified as 4-methyl-1,2-oxathiolane-5-one-2,2-dioxide by its equivalent weight, 75.

Workup

  1. customprecipitates an oil which

Sources & evidence

ORD record
ord-5d672ea00c1046eb844b90438905afe1
Source dataset
uspto-grants-1979_03
Patent number
US04143020

Reaction notes

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