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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1511196Generated: November 4, 2026

Methyl Ethyl Ketone → Benzenamine, 4,4'-methylenebis[N-(1-methylpropyl)-

https://huagongshe.com/reaction/1511196

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl Ethyl KetoneHCID 6569—
Reactant4,4-DiaminodiphenylmethaneHCID 7577—
CatalystPlatinumHCID 23939—
SolventWaterHCID 962—
ProductBenzenamine, 4,4'-methylenebis[N-(1-methylpropyl)-HCID 11064096%

Reaction Conditions

Temperature136 °C

Reaction Steps

4,4′-Methylenebis(benzeneamine) (19.8 g, 0.1 mol), methyl ethyl ketone (20.0 g, 0.28 mol), Pt(S)/C (2.0 g), and water (28.0 g; formed a second phase) were charged into reactor. The reactor was purged 3 times with H2 at 22° C. The reaction mixture was then stirred at 800 rpm at 136° C. under H2 for 2.5 hours. GC showed 100% conversion of 4,4′-methylenebis(benzeneamine), and a 96-97% yield of N,N′-di-sec-butyl-4,4′-methylenebis(benzeneamine).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08212078B2
Source datasetuspto-grants-2012_07
ORD IDord-417eb1719b714b9899cedfebac1ab15a
Source noteuspto-grants-2012_07