The Structure and Reactions of Gossypol. II.¹ The Synthesis of 1,6,7-Trimethoxy-3-methylnaphthalene, a Prototype of Desapogossypol Hexamethyl Ether²

The Structure and Reactions of Gossypol. IV. The Synthesis of Desapogossypol Hexamethyl Ether1,2

“…It was soluble in sodium bicarbonate and gave no crystalline oxime derivative. The compound showed no ultraviolet absorption but gave infrared bands at 3.02 (hydroxyl), 5.77 and 5.90 µ (carbonyl).…”

“…93. 5 A mixture of 5.0 g. (0.0132 mole) of 2,2-dibromo-3-methyl-6,7-dimethoxy-l-tetralone (II) in 75 ml. of methanol was heated to boiling and several ml.…”