Hydrochloric Acid → HCID 21107906, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1.25 g (4.8 mmol) 1,1′:4′,1″-terphenyl-2′,3′-diamine, 0.75 ml (8.6 mmol) 85% aq. lactic acid and 4.8 ml 4N HCl were stirred at reflux for 6 hours and then the volatile materials evaporated over 1 hour. The oily residue was heated to 140° C. and stirred for 15 min. After cooling to room temperature 10 ml water were added and the mixture triturated for 30 min. Addition of conc. NH4OH to pH˜7.5–8 followed by filtration, washing with water (4×10 ml) and drying under vacuum at 60° C. gave 1.25 g (82.8%) of the desired product. 1H NMR (250 MHz, CDCl3), δ, ppm: 1.58 (d, JHH=6.7 Hz, 3H), 3.64 (br.s, 1H), 5.07 (q, 1H), 7.37–7.76 (m, 12 H), 9.53 (br. s, 1H).

Provenance & Evidence