Investigation of the multicomponent reaction of 5-hydroxy-2-methyl-4H-pyran-4-one with carbonyl compounds and Meldrum's acid
作者:Andrey N. Komogortsev、Boris V. Lichitsky、Alexander D. Tretyakov、Arkady A. Dudinov、Michail M. Krayushkin
DOI:10.1007/s10593-019-02542-1
日期:2019.9
Herein, we report the studies of the multicomponent reaction of 5-hydroxy-2-methyl-4H-pyran-4-one with carbonyl compounds and Meldrum's acid. General methods for the synthesis of 6-methyl-3,4-dihydropyrano[3,2-b]pyran-2,8-diones, 3-(3-hydroxy-6-methyl-4-oxo-4H-pyran-2-yl)propanoic acid amides and esters, as well as 7-oxo-7H-furo[3,2-b]pyran-3-ylacetic acids were elaborated. An efficient synthesis of spiro-condensed
在此,我们报道了5-羟基-2-甲基-4 H-吡喃-4-酮与羰基化合物和梅德鲁姆酸的多组分反应的研究。合成6-甲基-3,4-二氢吡喃并[3,2- b ]吡喃-2,8-二酮,3-(3-羟基-6-甲基-4-氧代-4 H-吡喃-的一般方法制备了2-基)丙酰胺和酯,以及7-氧代-7 H-呋喃[3,2 - b ]吡喃-3-基乙酸。开发了有效合成含5-羟基-2-甲基-4 H-吡喃-4-酮片段的螺缩二氢吡喃酮的方法。