Effect of Microwave Irradiation on the Condensation of 6-Substituted 3-Formylchromones with Some Five-membered Heterocyclic Compounds
作者:Margita Lacova、Renata Gasparova、Dusan Loos、Tibor Liptay、Nada Pronayova
DOI:10.3390/50200167
日期:——
Technology, Slovak University of Technology, SK-812 37Bratislava, Slovak RepublicReceived: 14 November 1999 / Accepted: 31 December 1999 / Published: 19 February 2000Abstract: Different types of 3-substituted 4H-4-oxobenzopyrans were prepared by micro-wave irradiation as well as by a classical method. The beneficial effect of microwave irra-diation on the aldol condensation of 3-formylchromones with
Central Laboratories, Faculty of Chemical Technology, Slovak University, SK-812 37Bratislava, Slovak Republic收稿日期:1999 年 11 月 14 日/接受日期:1999 年 12 月 31 日/发表日期:2000 年 2 月 19 日摘要:制备了不同类型的 3-取代 4H-4-氧代苯并吡喃通过微波辐射以及通过经典方法。微波辐照对 3-甲酰基色酮与 2-亚氨基-1-甲基-咪唑烷-4-酮(肌酐)、2-硫代咪唑烷-4-酮(硫乙内酰脲)和 2-乙基-2 羟醛缩合的有益影响描述了不同反应介质中的 -thioxothiazolidin-4-one (3-ethylrhodanine)。我们的结果表明,微波辐射对所研究反应的影响是反应时间的缩短和产率的平稳增加。讨论了产物与一些亲核试剂的后续反