Microwave-Assisted Catalyst Free Three Component Synthesis of Mono and Bis Spiro Pyrazolopyridines in Solvent Free Reaction

An efficient method was developed for the synthesis of pyrazole fused heterocycles via the palladium-catalyzed solvent free reaction of β-halovinyl/aryl aldehydes and 3-aminopyrazoles/5-aminopyrazoles under microwave irradiation in good yields.

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Ultrasound-assisted phase-transfer catalysis method in an aqueous medium to promote the Knoevenagel reaction: Advantages over the conventional and microwave-assisted solvent-free/catalyst-free method

Ultrasonics Sonochemistry ◽

10.1016/j.ultsonch.2014.02.021 ◽

2014 ◽

Vol 21 (5) ◽

pp. 1666-1674 ◽

Cited By ~ 12

Author(s):

Pedro De-la-Torre ◽

Edison Osorio ◽

Jans H. Alzate-Morales ◽

Julio Caballero ◽

Jorge Trilleras ◽

...

Keyword(s):

Aqueous Medium ◽

Phase Transfer Catalysis ◽

Phase Transfer ◽

Solvent Free ◽

Knoevenagel Reaction ◽

Microwave Assisted ◽

Catalyst Free ◽

Ultrasound Assisted

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Microwave-Assisted Catalyst-Free and Solvent-Free Method for the Synthesis of Quinoxalines

Synthetic Communications ◽

10.1080/00397910902838862 ◽

2009 ◽

Vol 39 (20) ◽

pp. 3743-3754 ◽

Cited By ~ 19

Author(s):

Jian-Feng Zhou ◽

Gui-Xia Gong ◽

San-Jun Zhi ◽

Xiu-Li Duan

Keyword(s):

Solvent Free ◽

Microwave Assisted ◽

Catalyst Free

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Microwave-Assisted Synthesis of the Tetradentate Schiff-Bases under Solvent-Free and Catalyst-Free Condition.

ChemInform ◽

10.1002/chin.200330060 ◽

2003 ◽

Vol 34 (30) ◽

Author(s):

Maryam Mirza-Aghayan ◽

Mitra Ghassemzadeh ◽

Maryam Hoseini ◽

Mohammad Bolourtchian

Keyword(s):

Schiff Bases ◽

Solvent Free ◽

Microwave Assisted Synthesis ◽

Free Condition ◽

Microwave Assisted ◽

Catalyst Free

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Microwave Assisted Envirocat EPZ-10 Catalyzed Multi-component Synthesis of 1-Amidoalkyl-2-naphthols

Asian Journal of Organic & Medicinal Chemistry ◽

10.14233/ajomc.2021.ajomc-p335 ◽

2021 ◽

Vol 6 (3) ◽

pp. 204-210

Author(s):

Kanchan Joshi-Kulkarni ◽

Tarulata Chhowala ◽

Balu Ajalkar

Keyword(s):

Reaction Time ◽

Green Synthesis ◽

Mass Spectroscopy ◽

Heterogeneous Catalysts ◽

Catalytic Efficiency ◽

Solvent Free ◽

Spectroscopic Methods ◽

Synthetic Method ◽

Microwave Assisted ◽

Solvent Free Reaction

Microwave assisted catalytic efficiency of Envirocat EPZ-10 was explored in solvent free green synthesis of 1-amidoalkyl-2-naphthols by the reaction of aldehyde, 2-naphthol and acetamide. The products formed were characterized by spectroscopic methods such as NMR, IR and mass spectroscopy. The merits of developed synthetic method are use of Envirocat EPZ-10 as eco-friendly, reusable and heterogeneous catalysts, solvent-free reaction, shorter reaction time and easy isolation of product.

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