Synthesis of hydroxybenzofurans by condensation of quinones with benzoylacetone: revised structure of the adducts
作者:Hassan Hammoud、Qian Zhao、Laurent Désaubry
DOI:10.1016/j.tetlet.2016.07.074
日期:2016.9
triflate-catalyzed condensation of diketones with quinones has been reported to efficiently yield 3-acyl-5-hydroxybenzofurans. We found that the reported structure of the adducts resulting from the condensation of benzoylacetone should be revised to be the 2-methyl-3-benzoyl isomers.
据报道,三氟甲磺酸铜(II)催化二酮与醌的缩合可有效产生3-酰基-5-羟基苯并呋喃。我们发现,由苯甲酰丙酮缩合产生的加合物的报道结构应修改为2-甲基-3-苯甲酰基异构体。