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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 584614Generated: November 1, 2026

3,4-Difluoroaniline → HCID 22313736, compound

https://huagongshe.com/reaction/584614

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-DifluoroanilineHCID 77469—
Reactanttert-Butyl 4-oxopiperidine-1-carboxylateHCID 735900—
ReactantSodium triacetoxyborohydrideHCID 5049666—
SolventAcetic AcidHCID 176—
SolventDichloromethaneHCID 6344—
SolventTrifluoroacetic acidHCID 6422—
ProductHCID 22313736HCID 22313736—

Reaction Steps

Was synthesised in the same way as (A) from 4-oxo-piperidine-1-carboxylic acid tert-butyl ester (3.59 g, 18.0 mmol), 3,4-difluoro-phenylamine (1.16 g, 9.0 mmol) and sodium triacetoxyborohydride (5.34 g, 25.2 mmol) in dichloromethane (40 ml) and acetic acid (3.1 ml). The deprotection was run in dichloromethane (37 ml) and trifluoro acetic acid (18 ml). Yield 1.26 g, 66%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06927222B2
Source datasetuspto-grants-2005_08
ORD IDord-a505606c5c62409ca67e5544801e048f
Source noteuspto-grants-2005_08