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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1844494Generated: October 31, 2026

Benzylamine → HCID 10800431, compound

https://huagongshe.com/reaction/1844494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzylamineHCID 7504—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,2-Difluoro-4-nitrobenzeneHCID 123053—
SolventAcetonitrileHCID 6342—
ProductHCID 10800431HCID 1080043193.7%

Reaction Steps

50 g (34.5 mL, 14.3 mmol) 3,4-difluoronitrobenzene and 44.6 mL (408.6 mmol) benzylamine were combined with 600 mL acetonitrile, and then 82.3 mL (471.5 mmol) N,N-diisopropylethylamine (DIPEA) was added thereto. The resultant mixture was slowly heated to reflux. The reaction substantially completed after refluxing 5 hours, as monitored by a real-time thin layer chromatography (TLC). Then, heating was stopped and the mixture was allowed to cool to room temperature, resulting in the precipitation of a colorless transparent crystal. The mixture was filtered when substantially no more crystal precipitated. The filtrate was evaporated in a rotatory evaporator to afford a yellowish solid, which was recrystallized with ethanol to obtain a yellow crystal. Then, the yellow crystal was dried and weighed 72.5 g, with a yield of 93.7%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946436B2
Source datasetuspto-grants-2015_02
ORD IDord-eaf682eefc014786be63240e31d44783
Source noteuspto-grants-2015_02