Sodium Hydroxide → 3,4-Dimethyl-1,2-oxathiolane-5-one-2,2-dioxide

HRID 613972Notes

Reaction equation

[CH3:1]/[C:2](=[CH:6]\[CH3:7])/[C:3]([OH:5])=[O:4].[OH-].[Na+].[S:10](=O)([OH:12])[O-:11].[Na+]>>[CH3:7][CH:6]1[CH:2]([CH3:1])[C:3](=[O:5])[O:4][S:10]1(=[O:12])=[O:11]

Participants

Reactant 3

HCID 14798Sodium Hydroxide

HCID 125468Tiglic acid

HCID 23665763Sodium Bisulfite

Product 1

HCID 213296113,4-Dimethyl-1,2-oxathiolane-5-one-2,2-dioxide

Procedure

100 g. of α-methyl-crotonic acid is reacted with sodium hydroxide to neutralize the carboxyl group. Sodium bisulfite (104 g.) in aqueous solution is added and the reaction continued as described in earlier examples to obtain 3,4-dimethyl-1,2-oxathiolane-5-one-2,2-dioxide.

Workup

customthe reaction continued

Sources & evidence

ORD record: ord-d11658f506a349a087f3cddbd100d7d1
Source dataset: uspto-grants-1979_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04143020

Reaction notes

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