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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1458255Generated: October 25, 2026

Hydrogen Peroxide → 4-Methoxyimino-5-methylthiochroman-6-carboxylic acid-1,1-dioxide

https://huagongshe.com/reaction/1458255

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen PeroxideHCID 784—
ReactantEthyl AcetateHCID 8857—
Reactant4-Methoxyimino-5,8-dimethyl-6-(1-ethyl-5-n-propanesulfonyloxypyrazol-4-yl)carbonylthiochroman-1,1-dioxideHCID 53795658—
Reactant4-Methoxyimino-5-methylthiochroman-6-carboxylic acidHCID 53997679—
SolventAcetic AcidHCID 176—
Product4-Methoxyimino-5-methylthiochroman-6-carboxylic acid-1,1-dioxideHCID 5397154097%

Reaction Steps

1.0 Gram (4.0 mmol) of the 4-methoxyimino-5-methylthiochroman-6-carboxylic acid obtained in the above (2) was reacted with 1.3 g (12 mmol) of a 30% hydrogen peroxide aqueous solution in 5 ml of acetic acid at 100° C. for 1 hour. Ethyl acetate was added to the reaction product, and the mixture was washed with a saturated sodium chloride aqueous solution and then dried over sodium sulfate. The solvent was distilled off to give 1.1 g (yield 97%) of 4-methoxyimino-5-methylthiochroman-6-carboxylic acid-1,1-dioxide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05849926
Source datasetuspto-grants-1998_12
ORD IDord-8c6cd4df0e944072bdac1909224c6ce9
Source noteuspto-grants-1998_12