Hydroquinone → 2-Phenoxy-3,4-dihydro-2H-pyran

Participants

Reaction Steps

45 g (375 mmol) of phenylvinyl ether, 21 g (375 mmol) of acrolein and 0.66 g (6 mmol) of hydroquinone are reacted in a pressure reactor for 1 h at 185° C. After cooling, 2-phenoxy-3,4-dihydro-2H-pyran is isolated by distillation at 80° C./0.0267 kPa in a yield of 30.2 g (172 mmol; 46%) as a clear liquid.

Provenance & Evidence