Dimethylformamide → HCID 14592965, compound

Participants

Reaction Conditions

Reaction Steps

In 50 ml of N,N-dimethyl formamide 4.2 g (20 millimoles) of 7.8-dihydroxy-2,2-dimethyl-4-chromanone are dissolved, whereupon 5 ml of diethylene glycol dimethylether, 3.0 g (22 millimoles) of potassium carbonate and 4.2 g (2.5 ml, 25 millimoles) of isopropyl iodide are added. The reaction mixture is heated at 140° C. for 4 hours and worked up according to Example 19. Thus 4.5 g of the desired compound are obtained, yield 90%, mp.: 114°-116° C.

Provenance & Evidence