Water → HCID 86742187, compound

Participants

Reaction Steps

22.3 g (0.1 mole) of 9,10-phenanthrene-dione-9-oxime are dissolved in 200 ml of 1:1 mixture of dimethyl formamide and acetonitrile under stirring, whereupon 16 ml of pyridine are added. To the reaction mixture a solution of methyl chloroformate and 30 ml of acetonitrile is added dropwise under stirring. The reaction mixture is stirred first at room temperature for an hour and thereafter at boiling point for 15 minutes. The reaction mixture is cooled and poured into 700 ml of icecold water. On cooling the precipitated oily product solidifies. Thus 22.9 g of 9,10-phenanthrene-dione-9-methoxycarbonyl-oxime are obtained in the form of an orchre-yellow product. Yield 81.5%, mp.: 142°-143° C.

Provenance & Evidence