1,2-Dichlorobenzene → 2,4-Dihydroxy-3-allylbenzophenone

Beteiligte Stoffe

Reaktionsschritte

Commercially available 4-allyloxy-2-hydroxybenzophenone (15 g) was rearranged by heating under reflux in ortho-dichlorobenzene (60 mL) for 26 hours. The product was isolated by dilution of the reaction mixture with 5 volumes hexanes to give a crystalline product as fine needles.

Herkunft & Nachweise