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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1857576Generated: November 1, 2026

Methanol → N-(4-chlorophenyl)-N'-2-butanesulfonylurea

https://huagongshe.com/reaction/1857576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant4-Chlorophenyl IsocyanateHCID 7693—
ReactantSodium MethoxideHCID 10942334—
ReactantButane-2-sulfonamideHCID 20482438—
SolventTetrahydrofuranHCID 8028—
ProductN-(4-chlorophenyl)-N'-2-butanesulfonylureaHCID 983896518.6%

Reaction Steps

The method of Example 10 was followed with 2-butanesulfonamide (6.85 g), methanol (250 ml), sodium methoxide (2.7 g), tetrahydrofuran (250 ml) and 4-chlorophenyl isocyanate (7.7 g) with the resulting solid being recrystallized from ethyl acetate to give 2.7 g of white crystals with a melting point of 172-174° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06147115
Source datasetuspto-grants-2000_11
ORD IDord-c50f05fc12104693b6622508876bf68a
Source noteuspto-grants-2000_11