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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1833966Generated: October 31, 2026

Methylamine → 2-Naphthalenamine, N-methyl-

https://huagongshe.com/reaction/1833966

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethylamineHCID 6329—
ReactantTriphenyl phosphiteHCID 7540—
Reactant2-NaphtholHCID 8663—
SolventWaterHCID 962—
Product2-Naphthalenamine, N-methyl-HCID 13750597%

Reaction Conditions

Temperature70 °C

Reaction Steps

288 parts of β-naphthol, 3 parts of triphenyl phosphite and 80 parts of methylamine gas are heated for 10 hours under pressure at 200° C in a pressure autoclave. The pressure is 40 atmospheres. When the two-phase mixture has cooled, water is added, the batch is stirred for 30 minutes at 70° C and the lower oily phase is separated off and distilled. 305 parts of N-methyl-β-naphthylamine, boiling at 165° - 166° C/12 mm Hg, are obtained. This corresponds to a yield of 97% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04067903
Source datasetuspto-grants-1978_01
ORD IDord-34a5f6de98ac4d058ed0906a1e4becc7
Source noteuspto-grants-1978_01