Investigation on the condensation of α and β ketoaldehydes with hydroxyaromatic compounds
作者:Naciye Talinli、Bekir Karliga
DOI:10.1002/jhet.5570410210
日期:2004.3
Mechanism of the condensation reactions of methylglyoxal, phenylglyoxal and benzoylacetaldehyde with phenolic compounds have been discussed. It was observed that the reaction mechanisms changed depending on the type of the phenolic and also dicarbonyl compounds. While, methylglyoxal gave the angular methyl derivative of naphthofuraranonaphthofuran with 2-naphthol, phenylglyoxal and its p-chloro and
讨论了甲基乙二醛,苯乙二醛和苯甲酰乙醛与酚类化合物的缩合反应机理。观察到反应机理根据酚类化合物以及二羰基化合物的类型而改变。而甲基乙二醛使萘呋喃呋喃基萘呋喃与2-萘酚形成角甲基衍生物,苯基乙二醛及其对氯和对甲氧基衍生物形成了苯并[ b ]萘并[ 2,1- f ]氧杂环庚烷-13-。然而,间苯二酚的行为不同,并生成带有苯基乙二醛衍生物的2-苯基-3-(2,4-二羟基)-6-羟基-苯并[ b ]呋喃。2-苯基-4-(2-羟基萘基)-4 H-萘[ b苯甲酰基乙醛与2-萘酚反应制得] pyran,但当相同的羰基化合物时,反应产物为3,9-二羟基-6-苯基-6,12-甲醇-12 H-二苯并[1,3]二氧杂环丁烷与间苯二酚反应。