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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1457755Generated: October 27, 2026

Methane → 3-(5-Chloro-2-methoxybenzamido)-2,2-dimethyl-6-(methylaminocarbonylaminosulfonyl)-7-methoxychroman

https://huagongshe.com/reaction/1457755

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethaneHCID 297—
ReactantSodium HydroxideHCID 14798—
Reactant2,2,2-Trichloro-n-methylacetamideHCID 248652—
Reactant3-(5-Chloro-2-methoxybenzamido)-2,2-dimethyl-6-sulfamoyl-7-methoxychromanHCID 22100441—
Product3-(5-Chloro-2-methoxybenzamido)-2,2-dimethyl-6-(methylaminocarbonylaminosulfonyl)-7-methoxychromanHCID 22100470—

Reaction Conditions

Temperature80 °C

Reaction Steps

1.23 g (7.5 mmol) of N-methyltrichloroacetamide were added to 2.27 g (5 mmol) of 3-(5-chloro-2-methoxybenzamido)-2,2-dimethyl-6-sulfamoyl-7-methoxychroman and 0.5 g (12.5 mmol) of finely powdered sodium hydroxide. After the mixture had been stirred at 80° C. for half an hour, it was introduced into ice/water, clarified with charcoal and acidified to pH 1. The precipitate was filtered off with suction, dried and recrystallized from ethanol/DMF. The product had a melting point of 248° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05849755
Source datasetuspto-grants-1998_12
ORD IDord-16eecf5dd5c2493bb7c0041507458fe4
Source noteuspto-grants-1998_12