4H-pyran-4-one → HCID 22419713, compound

Participants

Reaction Steps

4-Pyranone (1 g, 10.4 mmol) and t-butylcarbazate (1.32 g, 10 mmol) were heated at reflux in ethanol for 48 h. The solvent was gradually allowed to distil from the mixture and the residue was chromatographed on silica gel 60, eluting with ethanol, dichloromethane (1:19) to give the title compound (1.16 g, 50%); υmax (KBr) 1723, 1630, and 1550 cm-1 ; δH 1.54 (9H, s), 6.47 (2H, d), and 7.60 (2H, d); M+ 210.

Provenance & Evidence