Triethylamine → HCID 54468521, compound

Participants

Reaction Steps

To an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (300 mg, 1.2 mmol) and triethylamine (260 μL, 1.8 mmol) in methylene chloride (50 mL) was added dropwise butyryl chloride (140 μL, 1.3 mmol) in methylene chloride (10 mL). After the addition the reaction was allowed to stir at ambient temperature for 1 h and then washed with a dilute aqueous sodium hydrogen carbonate solution. The phases were separated and the combined organic phases were dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/methanol/concentrated ammonium hydroxide (95:4:0.5) as the eluent. Yield: 330 mg (86%) of the title compound as white crystals: mp 131-132° C.; [α]21D +24° (c 0.50, chloroform); EIMS (70 eV) m/z (relative intensity) 315 (39, M+).

Provenance & Evidence