A Lewis acid-catalyzed tandem reaction enabling 2-arylglycerol derivative as versatile 1,3-biselectrophiles for the synthesis of 4H-chromenes and 2-pyridinones
作者:Shaomin Chen、Tianjian Zhang、Zhenhua Xu、Bo You、Minghao Li、Yanlong Gu
DOI:10.1016/j.cclet.2023.108130
日期:2023.1
Acid-catalyzed tandem reactions were established by employing a novel class of 2-arylglycerol derivative, 5-aryl-1,3-dioxan-5-ol, as versatile 1,3-biselectrophile. In the reactions, 5-aryl-1,3-dioxan-5-ol works like atropaldehydes or 2-aryl malondialdehydes, and can react with 2-naphthols and β-keto amides, allowing the synthesis of 4H-chromenes and 5-aryl-2-pyridinones. High yields, good functional
通过使用一类新型 2-芳基甘油衍生物 5-芳基-1,3-二恶烷-5-醇(作为通用的 1,3-双亲电子试剂)建立了酸催化串联反应。在反应中,5-芳基-1,3-二恶烷-5-醇的作用类似于阿托醛或2-芳基丙二醛,并且可以与2-萘酚和β-酮酰胺反应,从而合成4 H-色烯和5-芳基-2-吡啶酮。高产率、良好的官能团耐受性、广泛的底物范围和简单的反应操作使该方案具有吸引力。