for the synthesis of 2H-indazolo[2,1-b]phthalazine-triones via one-pot, three-component condensation reaction of aromatic aldehydes with 1,3-dicarbonyl compounds and phthalhydrazide using reusable dodecylphosphonic acid (DPA) as heterogeneous solid acid catalyst under solvent-free conditions. This protocol provides a novel and improved method for obtaining 2H-indazolo[2,1-b]phthalazine-triones in terms
已开发出一种新的绿色方案,用于使用可重复使用的十二烷基膦酸酯通过芳香醛与1,3-二羰基化合物和邻苯二甲酰肼的一锅三组分缩合反应来合成2 H-吲唑并[ 2,1 - b ]邻苯二甲酮三酮。在无溶剂条件下作为多相固体酸催化剂的酸(DPA)。该方案提供了一种新颖且改进的方法,该方法以良好的收率和很少的催化剂载量获得了2 H-吲哚并[ 2,1 - b ]邻苯二嗪-三酮。
Microwave-assisted, montmorillonite K-10 catalyzed three-component synthesis of 2H-indazolo[2,1-b]phthalazine-triones under solvent-free conditions
An efficient, rapid, and green synthesis of 2H-indazolo[2,1-b]phthalazine-triones has been accomplished under solvent-free conditions by the reaction of phthalhydrazide, aldehydes and 5,5-dimethylcyclohexane-1,3-dione. This approach exploits the synthetic potential of microwave irradiation and Montmorillonite K-10 combination and offers many advantages, such as excellent product yields, shorter reaction
通过邻苯二甲酰肼,醛与5,5-二甲基环己烷-1,3-二酮的反应,在无溶剂条件下完成了2H-吲唑并[2,1 - b ]邻苯二甲酰基三酮的高效,快速和绿色合成。这种方法利用了微波辐射和蒙脱石K-10组合的合成潜力,并提供了许多优势,例如出色的产品收率,更短的反应时间,可重复使用的催化剂,易于分离的产品以及对环境无害的反应条件。