1-Decanol → diethyl 7-(decyloxy)-3,4-dihydro-4-oxo-8-propyl-2H-1-benzopyran-2,2-dipropanoate

Participants

Reaction Steps

To a mixture of 406 mg (1.00 mmol) of the title product of Example 1, 190 mg (1.20 mmol) of 1-decanol, and 393 mg (1.50 mmol) of triphenylphosphine in 10 ml of dimethylformamide was added 261 mg (1.50 mmol) of diethyl azodicarboxylate. After stirring overnight at room temperature, the solvent was removed under reduced pressure. Chromatography of the residue on silica gel, using 20% ethyl acetate/hexane as eluent, gave 408 mg of the title compound.

Provenance & Evidence