Synthesis and aminomethylation of regioisomeric 6-hydroxy-4-methyl- and 4-hydroxy-6-methylaurones
作者:Antonina V. Popova、Svitlana P. Bondarenko、Mykhaylo S. Frasinyuk
DOI:10.1007/s10593-018-2360-5
日期:2018.9
The regioisomeric 6-hydroxy-4-methyl- and 4-hydroxy-6-methylaurones were synthesized. Aminomethylation by the action of aminals of secondary amines was investigated. It was shown that the reaction proceeds selectively with the formation of 7-aminomethyl-6-hydroxy-4-methyl- and 5-aminomethyl-4-hydroxy-6-methylaurones, respectively. The use of an excess of the aminals allows to obtain 5,7-bis(aminomethyl)
合成了区域异构的6-羟基-4-甲基-和
4-羟基-6-甲基
金酮。研究了通过仲胺的
缩醛胺的
氨基甲基化。结果表明反应选择性地进行,分别形成7-
氨基甲基-6-羟基-4-甲基和5-
氨基甲基-
4-羟基-6-甲基
金酮。使用过量的
缩醛胺可以得到6-羟基-4-甲基
金酮的5,7-双(
氨基甲基)衍
生物。