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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1293468Generated: October 30, 2026

N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-nitro-dibenzo[b,d]furan-1-carboxamide → N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-amino-dibenzo[b,d]furan-1-carboxamide

https://huagongshe.com/reaction/1293468

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-nitro-dibenzo[b,d]furan-1-carboxamideHCID 10050271—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
ProductN-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-amino-dibenzo[b,d]furan-1-carboxamideHCID 10320896—

Reaction Steps

A mixture of N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-nitro-dibenzo[b,d]furan-1-carboxamide (example 58) (100 mg), methanol (10 ml) and 10% Pd/C (10 mg) was hydrogenated at 60 psi for 12 h. Filteration of the reaction mixture over celite bed and removal of solvent methanol under reduced pressure afforded N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-8-amino-dibenzo[b,d]furan-1-carboxamide as white solid. mp: >270° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07238725B2
Source datasetuspto-grants-2007_07
ORD IDord-ca604b8936ec4ebc93a3a574cb1aacc1
Source noteuspto-grants-2007_07