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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2398716Generated: October 31, 2026

Benzenesulfonamide, 3-amino- → HCID 178467268, compound

https://huagongshe.com/reaction/2398716

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzenesulfonamide, 3-amino-HCID 7377—
Reactant3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-oneHCID 135465969—
SolventMethanolHCID 887—
ProductHCID 178467268HCID 178467268—

Reaction Steps

To a hot solution of 2.12 g. (0.01 mol) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 40 ml. of methanol is added 1.72 g. (0.01 mol) of m-sulfamylaniline and the mixture is refluxed for one hour. The solid is filtered from the reaction mixture to obtain 5-acetyl-4-hydroxy-3-[1-(3-sulfamylphenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 237° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04025614
Source datasetuspto-grants-1977_05
ORD IDord-72bbf76f3b0644eb9cbfb30b16c85a1c
Source noteuspto-grants-1977_05