Tetrabutylammonium Bromide (TBAB) Promoted Metal-Free Synthesis of 2H-Indazolo[1,2-b]Phthalazinetriones and Pyrazolo[1,2-b]Phthalazines from Benzylalcohol through Aerobic Oxidation, Sequential Addition-Cyclization with Phthalhydrazide and β-Diketones

Pavithra, Dalavai; Ethiraj, K. R.

doi:10.1080/10406638.2020.1732430

Polycyclic Aromatic Compounds

2020

DOI: 10.1080/10406638.2020.1732430

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Tetrabutylammonium Bromide (TBAB) Promoted Metal-Free Synthesis of 2H-Indazolo[1,2-b]Phthalazinetriones and Pyrazolo[1,2-b]Phthalazines from Benzylalcohol through Aerobic Oxidation, Sequential Addition-Cyclization with Phthalhydrazide and β-Diketones

Dalavai Pavithra

K. R. Ethiraj

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Cited by 6 publications

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One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

Suresh,

Nawaz Khan

2024

ACS Omega

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The sequential synthesis of N-heterocycles from saturated ketones poses significant challenges and has rarely been reported. Herein, an efficient synthesis of alkenylated dihydroquinolinones 7 and hexahydroacridinones 8 is achieved from saturated ketones 1 or 2 via dehydrogenation, cyclization, oxidation, and αalkenylation in choline chloride-based deep eutectic solvent (DES) medium. This strategy provides alkenylated dihydroquinolinones 7 and hexahydroacridinones 8 in excellent yield from low-cost, readily available starting materials under environmentally benign conditions. Furthermore, the synthesized compounds (4, 5, 7, and 8) were investigated for their photophysical properties through absorption and emission spectral studies.

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One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

Suresh,

Nawaz Khan

2024

ACS Omega

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A Cu₂O/TBAB-promoted approach to synthesize heteroaromatic 2-amines via one-pot cyclization of aryl isothiocyanates with ortho-substituted amines in water

et al. 2020

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Nitrogen-bridgehead compounds: overview, synthesis, and outlook on applications

Grau,

Kumar,

Nilsen

et al. 2025

Org. Biomol. Chem.

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Tetrabutylammonium Bromide (TBAB) Promoted Metal-Free Synthesis of 2H-Indazolo[1,2-b]Phthalazinetriones and Pyrazolo[1,2-b]Phthalazines from Benzylalcohol through Aerobic Oxidation, Sequential Addition-Cyclization with Phthalhydrazide and β-Diketones

Cited by 6 publications

References 52 publications

One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

A Cu₂O/TBAB-promoted approach to synthesize heteroaromatic 2-amines via one-pot cyclization of aryl isothiocyanates with ortho-substituted amines in water

Nitrogen-bridgehead compounds: overview, synthesis, and outlook on applications

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Tetrabutylammonium Bromide (TBAB) Promoted Metal-Free Synthesis of 2H-Indazolo[1,2-b]Phthalazinetriones and Pyrazolo[1,2-b]Phthalazines from Benzylalcohol through Aerobic Oxidation, Sequential Addition-Cyclization with Phthalhydrazide and β-Diketones

Cited by 6 publications

References 52 publications

One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

One-Pot Sequential Synthesis of Alkenylated Dihydroquinolinones and Hexahydroacridinones in Deep Eutectic Solvent Medium

A Cu2O/TBAB-promoted approach to synthesize heteroaromatic 2-amines via one-pot cyclization of aryl isothiocyanates with ortho-substituted amines in water

Nitrogen-bridgehead compounds: overview, synthesis, and outlook on applications

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Product

Resources

About

A Cu₂O/TBAB-promoted approach to synthesize heteroaromatic 2-amines via one-pot cyclization of aryl isothiocyanates with ortho-substituted amines in water