Abstract The heartwood of Dalbergia melanoxylon has yielded new examples of known neoflavanoid types. The isolates included 4-phenylcoumarins, ( S )-4-methoxydalbergiones and benzophenones which have the corresponding oxygenation pattern. The structures of the extractives have been examined by physical methods, and confirmed by conversion to known compounds or by independent synthesis. A 2-cinnamylphenol
摘要 Dalbergia melanoxylon 的心材产生了已知新黄
酮类的新例子。分离株包括 4-苯基
香豆素、(S)-4-甲氧基黄檀酮和
二苯甲酮,它们具有相应的氧化模式。
提取物的结构已通过物理方法进行检查,并通过转化为已知化合物或通过独立合成进行确认。2-肉桂基
苯酚 (6) 和 3-肉桂基黄烷 (7) 是 4-甲氧基黄檀酮 (1b) 尝试合成中缩合反应的唯一产物。