Efficient One-Pot Synthesis of Spiro[Indoline-3,11'-Pyrazolo[3,4-<i>a</i>]Acridine]- 2,10'(1'<i>H</i>)-Dione Derivatives Catalyzed by L-Proline

Wang, Bing-Wei; Li, Lei; Liu, Haidi; Chen, Dong‐Sheng

doi:10.1080/10406638.2020.1858884

Cited by 4 publications

References 31 publications

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An efficient one‐pot synthesis of Spiro[indoline‐3,11′‐pyrazolo[3,4‐f]pyrimido[4,5‐b]quinoline] derivatives

Liu

Lan

et al. 2023

Journal of Heterocyclic Chem

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An efficient procedure for the synthesis of novel spiro[indoline‐3,11′‐pyrazolo[3,4‐f]pyrimido[4,5‐b]quinoline] derivatives has been developed by one‐pot condensation of 1H‐indazol‐6‐amine, isatin and barbituric acid or 2‐thiobarbituric acid, in the presence of L‐proline in refluxing EtOH. This method has the advantages of operational simplicity, high yield of products via a simple experimental and work‐up procedure. IR, 1H NMR, 13C NMR, 19F NMR and HRMS were used to identify the structures of all the synthesized compounds.

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An efficient one‐pot synthesis of Spiro[indoline‐3,11′‐pyrazolo[3,4‐f]pyrimido[4,5‐b]quinoline] derivatives

Liu

Lan

et al. 2023

Journal of Heterocyclic Chem

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Six-membered ring systems: pyridines and benzo derivatives

Badenock

2023

Progress in Heterocyclic Chemistry

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Comparative study of cerium-manganese ratios in the design of Ce-Mn-binuclear LDH-based Cu complex: a potent nanocatalyst for the green synthesis of spiro[acridine-9,3’-indole]triones

Javadi,

Habibi

2024

Sci Rep

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The Ce-Mn binuclear LDH was prepared at four different molar ratios of Ce to Mn (1:1, 1:2, 1:3, and 1:4), modified with both 3-chloropropyltrimethoxysilane (CPTMS) and N -amino-phthalimide (NAP), complexed with Cu(II), and characterized by the FT-IR, ICP, XPS, XRD, BET, UV/Vis, EDX, SEM, SEM-mapping, TEM, and TGA-DTA techniques. The ICP, XPS, BET, and UV-vis techniques showed that the 1:4 molar ratio of Ce to Mn is the best, therefore it was used as a heterogeneous nanocatalyst for the green synthesis of fourteen spiro[acridine-indole]triones from the three-component condensation reaction of isatin, aniline, and 1,3-diketone in mild reaction conditions. The advantages of this method include the absence of harmful organic solvents, easy separation of the catalyst and products, and rapid achievement of excellent yields. Furthermore, the activity of the catalyst was maintained even after four consecutive runs without a significant loss of activity. Supplementary Information The online version contains supplementary material available at 10.1038/s41598-024-75724-3.

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Efficient One-Pot Synthesis of Spiro[Indoline-3,11'-Pyrazolo[3,4-a]Acridine]- 2,10'(1'H)-Dione Derivatives Catalyzed by L-Proline

Cited by 4 publications

References 31 publications

An efficient one‐pot synthesis of Spiro[indoline‐3,11′‐pyrazolo[3,4‐f]pyrimido[4,5‐b]quinoline] derivatives

An efficient one‐pot synthesis of Spiro[indoline‐3,11′‐pyrazolo[3,4‐f]pyrimido[4,5‐b]quinoline] derivatives

Six-membered ring systems: pyridines and benzo derivatives

Comparative study of cerium-manganese ratios in the design of Ce-Mn-binuclear LDH-based Cu complex: a potent nanocatalyst for the green synthesis of spiro[acridine-9,3’-indole]triones

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