Application of the 2(5 H )furanone motif in the synthesis of new thiopyrano[2,3- d ]thiazoles via the hetero-Diels–Alder reaction and related tandem processes
作者:Andrii Lozynskyi、Borys Zimenkovsky、Andriy Karkhut、Svyatoslav Polovkovych、Andrzej K. Gzella、Roman Lesyk
DOI:10.1016/j.tetlet.2016.06.060
日期:2016.7
Novel thiopyrano[2,3-d]thiazole derivatives were synthesized from 5-arylidene-4-thioxo-2-thiazolidinones and 2(5H)furanone in 62–79% yields via hetero-Diels–Alder reactions and related acylation-based tandem processes. The reaction of 5-(4-fluorophenyl)-4-thioxo-2-thiazolidinone with 2(5H)furanone was studied by DFT at the M06-2X/6-31+G(d,p) level. The stereo- and regioselectivities of cycloaddition
新型的噻吩并[2,3- d ]噻唑衍生物是由5-芳叉基-4-硫代-2-噻唑烷酮和2(5 H)呋喃酮通过杂Diels-Alder反应和相关的酰化反应合成的,产率为62-79%。串联过程。通过DFT在M06-2X / 6-31 + G(d,p)水平上研究了5-(4-氟苯基)-4-硫代氧-2-噻唑烷酮与2(5 H)呋喃酮的反应。环加成反应的立体选择性和区域选择性通过NMR光谱和单晶X射线衍射分析确定。
Molecular design, synthesis and anticancer activity of new thiopyrano[2,3-d]thiazoles based on 5-hydroxy-1,4-naphthoquinone (juglone)