Uncatalysed Knoevenagel condensation of 3-formylchromones in green media: Polyethylene glycol - 400 (PEG-400)

Dhruva Kumar; Jagir S Sandhu

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Uncatalysed Knoevenagel condensation of 3-formylchromones in green media: Polyethylene glycol - 400 (PEG-400)

机译：3-甲酰基色酮在绿色介质中的未催化Knoevenagel缩合：聚乙二醇-400（PEG-400）

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An efficient, rapid and environmentally benign method for the Knoevenagel condensation of 3-formylchromones with a variety of active methylene compounds in polyethylene glycol 400 (PEG-400) under microwave irradiation (MWI) has been developed. This protocol has been found to be applicable for condensation of pharmacologically active heterocyclics such as rhodanine, creatinine, pyrazol-5-one, barbituric acid, etc. with 3-formylchromones.

机译：在微波辐射（MWI）下，已开发出一种高效，快速且环境友好的方法，用于在聚乙二醇400（PEG-400）中3-甲酰基色酮与多种活性亚甲基化合物的Knoevenagel缩合反应。已经发现该方案适用于药理活性杂环如罗丹宁，肌酐，吡唑-5-酮，巴比妥酸等与3-甲酰基色酮的缩合。

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《Indian Journal of Chemistry, Section B. Organic Including Medicinal》 |2012年第12期|共6页
作者
Dhruva Kumar; Jagir S Sandhu;
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正文语种 eng
中图分类化学;
关键词
Knoevenagel condensation; active methylene compounds; 3-formylchromones;

机译：Knoevenagel缩合;活性亚甲基化合物;3-甲酰基色酮;

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1. Uncatalysed Knoevenagel condensation of 3-formylchromones in green media: Polyethylene glycol - 400 (PEG-400) [J] . Dhruva Kumar, Jagir S Sandhu Indian Journal of Chemistry, Section B. Organic Including Medicinal . 2012,第12期

机译：3-甲酰基色酮在绿色介质中的未催化Knoevenagel缩合：聚乙二醇-400（PEG-400）
2. Polyethylene glycol (PEG-400): An efficient one-pot green synthesis and anti-viral activity of novel alpha-diaminophosphonates [J] . Phosphorus, Sulfur, and Silicon and the Related Elements . 2019,第10a12期

机译：聚乙二醇（PEG-400）：新型α-二氨基磷酸盐的有效的单盆绿合和抗病毒活性
3. Eco-friendly polyethylene glycol (PEG-400): a green reaction medium for one-pot, four-component synthesis of novel asymmetrical bis-spirooxindole derivatives at room temperature [J] . Hasaninejad Alireza, Beyrati Maryam RSC Advances . 2018,第4期

机译：环保聚乙二醇（PEG-400）：室温下的单罐的绿色反应介质，四组分合成新型不对称双螺氧肟衍生物
4. KNOEVENAGEL CONDENSATION: AN EFFICIENT GREEN APPROACH [C] . BHOSALE SHYAM, PAWAR YOGESH, SONAWANE ATUL, International Conference on Chemical, Biological and Environmental Engineering . 2010

机译：Knoevenagel冷凝：一种有效的绿色方法
5. 1. Studies directed toward the synthesis of 20B-carbachaparrinone analogs via a samarium (II) iodide ring closure of a highly functionalized intermediate. 2. Synthesis of 5-oxo-cyclopent-1-enecarboxylic acid methyl esters via a novel tandem aldol-knoevenagel condensation. 3. Novel carbocyclic ring formation via intramolecular enol trapping of an allyl cation in acidic polar media. [D] . DeSelms, Robert Herschel. 2002

机译：1.研究针对通过高度官能化中间体的碘化sa（II）闭环合成20B-氨基苯甲酰吗啉酮类似物。 2.通过新型串联的羟醛-knoevenagel缩合合成5-氧代-环戊-1-烯羧酸甲酯。 3.通过在酸性极性介质中烯丙基阳离子的分子内烯醇捕获而形成新的碳环。
6. Polyethylene Glycol (PEG-400): An Efficient and Recyclable Reaction Medium for the Synthesis of Pyrazolo34-bpyridin-6(7H)-one Derivatives [O] . Xiaoxing Zhong, Guolan Dou, Deming Wang 2013

机译：聚乙二醇（PEG-400）：一种高效且可循环利用的反应介质用于合成吡唑并34-b吡啶-6（7H）-一衍生物
7. Copper-catalyzed cyanation of aryl halides with sodium nitroprusside in polyethylene glycol 400 (PEG-400) [O] . Minhua Jiang, Tangjun Yuan, Fei Yi, 2016

机译：铜催化氰化钠与聚乙二醇400（pEG-400）中的硝普钠的氰化反应

Uncatalysed Knoevenagel condensation of 3-formylchromones in green media: Polyethylene glycol - 400 (PEG-400)

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