2-Carboethoxy-7-[5-(2-n-propylphenoxy)pentoxy]-8-n-propylchromone → 2-Carboethoxy-7-[5-(2-n-propylphenoxy)pentoxy]-8-n-propylchroman-4-one

Participants

Reaction Steps

961 mg (2 mmole) of the compound of Example 30 was dissolved in 30 ml of 50% tetrahydrofuran-ethanol and 96 mg of Raney Nickel was added. The resulting suspension was hydrogenated at 2 psi and room temperature for 30 minutes. After separation of the catalyst by filtration, the solvent was removed by rotary evaporation to yield 855 mg (89%) of the title compound as a clear oil. Calc: C, 72.17; H, 7.94; Found; C, 71.84; H. 8.00.

Provenance & Evidence