Synthesis of 1-phenyl-6H-anthra[1,9-b,c]furan-6-one (furanoanthrone) derivatives by the reaction of 1-acyloxy-9,10-anthraquinones with benzyl cyanide
作者:I. Ya. Mainagashev、L. S. Klimenko
DOI:10.1007/bf01431117
日期:1996.11
The reactions of various 1-acyloxyanthraquinones with benzyl cyanide in DMSO in the presence of K2CO3 were studied. 1-Phenyl-6H-anthra[1,9-b,c]furan-6-one derivatives are formed as the main reaction products. In the case of unsubstituted L-acyloxyanthraquinones, 1-phenyl-6H-anthra[1,9-b,c]furan-6-one and 1-phenylanthra[1,9-b,c]pyran-2,7-dione were isolated. It was shown that furanoanthrones can be synthesized in two steps via the corresponding pyronoanthrones.
An efficient synthesis of 9‐anthrone lactone derivatives via the Knoevenagel condensation and intramolecular cyclization
One‐step synthesis of 9‐anthrone lactone derivatives from 1‐acetyloxyanthraquinone with a variety of dicarbonyl substrates in the presence of K2CO3 by Knovenagel condensation and intramolecular cyclization is developed. Possible reaction mechanisms have been investigated using the density functional theory (DFT), which has been widely used in the study of reaction mechanism. The strategy could be useful
在K 2 CO 3存在下,通过Knovenagel缩合和分子内环化作用,由1-乙酰氧基蒽醌与多种二羰基底物一步合成9-蒽酮内酯衍生物。已使用密度泛函理论(DFT)研究了可能的反应机理,该理论已广泛用于反应机理的研究中。该策略可能对海洋天然产物曲霉内酯的核心结构的合成有用。