Dimethyl Sulfate → HCID 54075718, compound

Participants

Reaction Steps

7 g (0.024 mol) of 2,6-dimethyl-N-(2-furoyl)-N-(2-hydroxyimino-prop-1-yl)-aniline (Example 3) and 0.5 g of triethylbenzylammonium chloride were dissolved in a two-phase mixture of 30 ml of 50% strength sodium hydroxide solution and 100 ml of methylene chloride, and 3.7 g (0.03 mol) of dimethyl sulphate were added, while stirring vigorously. During this addition, the temperature rose from about 20° C. to about 32° C. After stirring the mixture at room temperature for 12 hours, the phases were separated. The organic phase was washed again with water, dried over sodium sulphate and concentrated. The resulting dark oil was distilled in a bulb tube apparatus (boiling point 170° C./0.1 mm Hg). The product (2.3 g) which had crystallized out was recrystallized from petroleum ether. 1.4 g (20% of theory) of 2,6-dimethyl-N-(2-furoyl)-N-(2-methoxyimino-prop-1-yl)-aniline of melting point 108°-109° C. were obtained.

Provenance & Evidence