Triethylamine → HCID 54545498, compound

Participants

Reaction Steps

4-Benzoylbenzoic acid (0.50 g, 2.2 mmol) was dissolved in thionyl chloride (15 mL) and heated at reflux for 15 min. The excess of thionyl chloride was evaporated in vacuo, the residue was treated with toluene and again the solvent was removed in vacuo. Crude acid chloride (150 mg, 0.60 mmol) was dissolved in methylene chloride (5 mL) and added dropwise to an ice-cooled solution of (R)-2-amino-8-(4-methylpiperazin-1-yl)-1,2,3,4-tetrahydronaphthalene (140 mg, 0.57 mmol) and triethylamine (120 μL, 0.86 mmol) in methylene chloride (30 mL). After the addition, the reaction was allowed to stir at ambient temperature for 15 min and was then washed with dilute aqueous sodium hydrogen carbonate. The phases were separated and the organic phase was dried (Na2SO4), filtered and evaporated in vacuo to give a crude product which was purified on a silica gel column using chloroform/ethanol saturated with NH3 (100:3) as the eluent. Yield: 120 mg (48%) of the title compound as white crystals: mp 194-195° C.; [α]21D −51° (c 1.0, chloroform); EIMS (70 eV) m/z (relative intensity) 453 (2, M+).

Provenance & Evidence