Ethanol → HCID 21402927, compound

Participants

Reaction Conditions

Reaction Steps

10,11-Dihydro-5H-dibenzo[a,d]cycloheptene-10-methylamine, γmaxCHCl3 3390, 3300 cm-1, (52.3g, 0.234 mole), is combined with δ-valerolactone (35g, 0.35 mole). The mixture is heated for 2 hr. at 150° C (oil bath temperature). After partial cooling, ethanol (250 ml) is added followed by a solution of potassium carbonate (50 g, 0.36 mole) in water (150 ml). The two-phase mixture is stirred at 60° C overnight. The ethanol is removed under reduced pressure and the residual mixture extracted with chloroform. The chloroform solution is washed with water, dried and taken to dryness. The residue is crystallized from benzene (750 ml) - ether (ca 800 ml) affording N-[(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-10-yl)methyl]-5-hydroxyvaleramide, m.p. 96°-98° C, γmaxCHCl3 3630, 3445, 3350, 1663 cm-1.

Provenance & Evidence