Reaction equation
[C:1](#[N:4])[CH2:2][OH:3].[C:5]1([CH3:15])[CH:10]=[CH:9][C:8]([S:11](Cl)(=[O:13])=[O:12])=[CH:7][CH:6]=1.COCCOC.[OH-].[Na+]>O>[C:5]1([CH3:15])[CH:10]=[CH:9][C:8]([S:11]([O:3][CH2:2][C:1]#[N:4])(=[O:13])=[O:12])=[CH:7][CH:6]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
Method of preparation: 8.1 g (0.1 mole of glycolonitrile (70% aqueous solution) is added to a cooled (15° -20° C.) mixture of 9.5 g (0.05 mole) of p-toluenesulfonyl chloride in 20 ml. of 1,2-dimethoxyethane and 50 ml. distilled water. A solution of 2.1 g (0.05 mole) of NaOH in 50 ml. distilled water is added slowly with stirring at 20°-25° C. over a period of 6.5 hours, maintaining the pH of the reaction mixture at about 8. The insoluble material is filtered off, washed with cold water, and dried at 40° C. under vacuum to yield 6.8 g (64% conversion) of the product, a light brown solid, m.p. 48°-50.5° C.
Workup
- customMethod of preparation
- temperaturea cooled
- temperaturemaintaining the pH of the reaction mixture at about 8
- filtrationThe insoluble material is filtered off
- washwashed with cold water
- customdried at 40° C. under vacuum
- customto yield 6.8 g (64% conversion) of the product
Sources & evidence
- ORD record
- ord-d7f52cd9c8264487915d7e6f4520eb50
- Source dataset
- uspto-grants-1977_06
- Patent number
- US04029809
Linked notes
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