Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones

Mayank G. Sharma; Ruturajsinh M. Vala; Hitendra M. Patel

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Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones

机译：吡啶-2-羧酸作为吡唑快速多组分合成的有效催化剂[3,4-B]喹啉酮

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Green synthesis of pyrazolo[3,4- b ]quinolinones was designed using bioproduct pyridine-2-carboxylic acid (P2CA) as a green and efficient catalyst. The multi-component reaction of aldehydes, 1,3-cyclodiones and 5-amino-1-phenyl-pyrazoles regioselectively produced pyrazolo[3,4- b ]quinolinones in excellent yield (84–98%). Recyclization of the catalyst was also investigated. The electronic effect of the various substituents in aromatic rings indicated that the reaction proceeded through the carbocation intermediate. This newly designed protocol very quickly constructed products conventionally under milder conditions.

机译：使用生物产物吡啶-2-羧酸（P2CA）设计吡唑[3,4- B]喹啉酮作为绿色和有效的催化剂设计。醛，1,3-环氨基和5-氨基-1-苯基 - 吡唑的多组分反应区域选择性地产生的吡唑[3,4- b]喹啉酮，优异的产率（84-98％）。还研究了催化剂的再循环化。各种取代基在芳环中的电子效果表明反应通过碳结构中间体进行。这种新设计的协议在较温和的条件下常规构建产品。

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《RSC Advances》 |2020年第58期|共6页
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Mayank G. Sharma; Ruturajsinh M. Vala; Hitendra M. Patel;
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1. Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones [J] . Sharma Mayank G., Vala Ruturajsinh M., Patel Hitendra M. RSC Advances . 2020,第58期

机译：吡啶-2-羧酸作为吡唑快速多组分合成的有效催化剂[3,4-B]喹啉酮
2. L-Proline as an efficient enantioinduction organo-catalyst in the solvent-free synthesis of pyrazolo [3,4-b]quinoline derivatives via one-pot multi-component reaction [J] . Bhattacharjee Deboshikha, Kshiar Baskhemlang, Myrboh Bekington RSC Advances . 2016,第98期

机译：L-脯氨酸作为一种高效的映对有机催化剂，在无溶剂合成吡唑醇[3,4-B]喹啉衍生物中通过单盆多组分反应
3. l-Proline as an efficient enantioinduction organo-catalyst in the solvent-free synthesis of pyrazolo[3,4-b]quinoline derivatives via one-pot multi-component reaction [J] . Deboshikha Bhattacharjee, Baskhemlang Kshiar, Bekington Myrboh RSC Advances . 2016,第98期

机译：L-脯氨酸作为一种高效的映对有机催化剂，在无溶剂合成吡唑醇[3,4-B]喹啉衍生物中通过单盆多组分反应
4. Synthesis of 4-hydroxyl pyrazolo3,4-dpyrimidines from the corresponding 4-chloride precusors with acetic acid [C] . Jian Sun, Shanshan Gong, Qi Sun International Conference on Mechanical Engineering, Materials and Energy . 2014

机译：用乙酸的相应4氯化物前体合成4-羟基吡唑3,4-D嘧啶
5. Exploration of alpha-Diazocarbonyl Compounds for Transition-Metal Catalyzed Carbon-Carbon Bond Formations. Development of Palladium-Catalyzed Stereoselective Synthesis of Trisubstituted Alkenes and the Synthesis of Quaternary alpha,alpha-Heterodiaryl Carboxylic Acids by Rhodium-Catalyzed Multi-Component Coupling Reactions. [D] . Tsoi, Yuk Tai. 2012

机译：探索用于过渡金属催化的碳-碳键形成的α-重氮羰基化合物。铑催化的多组分偶合反应在钯催化的立体选择性合成三取代的烯烃上的发展和季铵的α，α-杂二芳基羧酸的合成。
6. Introducing new and effective catalysts for the synthesis of pyridazino12-aindazole indazolo21-bphthalazine and pyrazolo12-bphthalazine derivatives [O] . Najmeh Amirmahani, Nosrat O. Mahmoodi, Mohammad Malakootian, 2020

机译：介绍用于合成哒嗪并12-a吲唑吲唑并21-b酞嗪和吡唑并12-b酞嗪衍生物的新型有效催化剂
7. Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo3,4-bquinolinones [O] . Mayank G. Sharma, Ruturajsinh M. Vala, Hitendra M. Patel 2020

机译：吡啶-2-羧酸作为吡唑快速多组分合成的有效催化剂3,4-B喹啉酮

Pyridine-2-carboxylic acid as an effectual catalyst for rapid multi-component synthesis of pyrazolo[3,4-b]quinolinones

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