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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1031736Generated: November 1, 2026

Thionyl Chloride → 3-cyano-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-one

https://huagongshe.com/reaction/1031736

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant3-carbamoyl-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-oneHCID 10785596—
SolventDimethylformamideHCID 6228—
Product3-cyano-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-oneHCID 14722415—

Reaction Steps

3-Carbamoyl-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-one was reacted with thionyl chloride in N,N-dimethylformamide to obtain 3-cyano-7-methylsulfonylamino-6-phenoxy-4H-1-benzopyran-4-one. The properties (melting point and IR) of this compound were identical with those of the compound obtained in Example 4.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04954518
Source datasetuspto-grants-1990_09
ORD IDord-6ab6da674f054e4c8e09f5ff83724807
Source noteuspto-grants-1990_09