scholarly journals Potassium Hydroxide Impregnated Alumina (KOH-Alumina) as a Recyclable Catalyst for the Solvent-Free Multicomponent Synthesis of Highly Functionalized Substituted Pyridazines and/or Substituted Pyridazin-3(2H)-ones under Microwave Irradiation

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Hormi Mecadon ◽  
Bekington Myrboh
Keyword(s):  
Microwave Irradiation ◽  
Hydrazine Hydrate ◽  
Potassium Hydroxide ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Rapid Access ◽  
Mw Irradiation ◽  
Active Methylene

The work described herein employs potassium hydroxide impregnated alumina (KOH-alumina) as a mild, efficient, and recyclable catalyst for a one-pot solvent-free and environmentally safer synthesis of 3,4,6-triarylpyridazines and some substituted pyridazines from active methylene carbonyl species, 1,2-dicarbonyls, and hydrazine hydrate by microwave (MW) irradiation. The method offers highly convergent, inexpensive, and functionality-tolerable procedure for rapid access to important pyridazine compounds in good yields.

One-pot synthesis of multisubstituted imidazoles under solvent-free conditions and microwave irradiation using Fe3O4@SiO2–imid–PMAn magnetic porous nanospheres as a recyclable catalyst

2015 ◽  
Vol 39 (5) ◽  
pp. 3388-3398 ◽  
Author(s):  
Mohsen Esmaeilpour ◽  
Jaber Javidi ◽  
Maryam Zandi
Keyword(s):  
Microwave Irradiation ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions

Synthesis of substituted imidazoles using the Fe3O4@SiO2–imid–PMAn nanocatalyst.

scholarly journals Tandem Fries Reaction–Conjugate Addition under Microwave Irradiation in Dry Media; One-pot Synthesis of Flavanones

1999 ◽  
Vol 23 (9) ◽  
pp. 574-575
Author(s):  
Firouz Matloubi Moghaddam ◽  
Mohammad Ghaffarzadeh ◽  
Seyed Hossein Abdi-Oskoui
Keyword(s):  
Microwave Irradiation ◽  
Silica Gel ◽  
Conjugate Addition ◽  
Solvent Free ◽  
Naphthalene Derivatives ◽  
One Pot ◽  
Fries Rearrangement ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Fries Reaction

An AICl3–ZnCl2 mixture supported on silica gel is found to be an efficient medium for the Fries rearrangement of acyloxybenzene or naphthalene derivatives in solvent-free conditions under microwave irradiation.

Unprecedented one-pot multicomponent synthesis of propargylamines using Amberlyst A-21 supported CuI under solvent-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (57) ◽  
pp. 46074-46087 ◽  
Author(s):  
Giovanna Bosica ◽  
John Gabarretta
Keyword(s):  
Coupling Reaction ◽  
Solvent Free ◽  
Environmentally Benign ◽  
Terminal Alkynes ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Solvent Free Conditions

An environmentally benign, one-pot, A3-coupling reaction of various aldehydes, amines and terminal alkynes for the synthesis of propargylamine was catalysed by Amberlyst A-21 supported CuI, under heterogeneous and solvent-free conditions.

scholarly journals ZnO Nanoparticles: A Highly Effective and Readily Recyclable Catalyst for the One-Pot Synthesis of 1,8-dioxo-decahydroacridine and 1,8-dioxooctahydro-xanthene Derivatives

2017 ◽  
Vol 57 (1) ◽  
Author(s):  
Javad Safaei-Ghomi ◽  
Mohammad Ali Ghasemzadeh ◽  
Safura Zahedi
Keyword(s):  
Zno Nanoparticles ◽  
Environmentally Friendly ◽  
Recyclable Catalyst ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
Xanthene Derivatives ◽  
Highly Effective ◽  
The One

ZnO nanoparticles as a worthwhile and recyclable catalyst have been used for the one-pot synthesis of 1,8-dioxo-decahydroacridines and 1,8-dioxooctahydro-xanthenes via multi-component reactions under solvent-free conditions. The presented method is mild, environmentally friendly, inexpensive and highly effective to give the products in good to excellent yields.

scholarly journals Solvent-free Synthesis of Nitriles from Aldehydes Catalyzed by KF/Al2O3, Montmorillonite KSF and K10

2006 ◽  
Vol 3 (3) ◽  
pp. 164-168
Author(s):  
Li-Jun Li ◽  
Ying-Xia Song ◽  
Yan-Su Gao ◽  
Yan-Feng Li ◽  
Jian-Feng Zhang
Keyword(s):  
Microwave Irradiation ◽  
Solvent Free ◽  
One Pot ◽  
Effective Catalyst ◽  
Multistep Procedure ◽  
Solvent Free Synthesis

Multistep and one-pot conversion of aldehydes to nitriles were carried out conveniently with out solvent using KF/Al2O3, montmorillonite KSF and K10 as catalyst, under microwave irradiation. The reactions are completed within 6-8 min to give satisfactory yields. KF/Al2O3was more effective catalyst both in multistep procedure and one-pot reaction.

One-pot multicomponent synthesis of novel thiazol-2-imines via microwave irradiation and their antifungal evaluation

2018 ◽  
Vol 48 (16) ◽  
pp. 2061-2073 ◽  
Author(s):  
Saba Kauser Jaweed Shaikh ◽  
Ravindra Ramappa Kamble ◽  
Shilpa M. Somagond ◽  
Atulkumar A. Kamble ◽  
Mahadev N. Kumbar
Keyword(s):  
Microwave Irradiation ◽  
Multicomponent Synthesis ◽  
One Pot

scholarly journals A Facile Solvent-Free Route for One-Pot Multicomponent Synthesis of Benzylpyrazolyl Coumarins Derivatives in Presence of Effective Synergetic Catalytic System

2019 ◽  
Vol 31 (6) ◽  
pp. 1357-1361 ◽  
Author(s):  
NARENDRA R. KAMBLE ◽  
VINOD T. KAMBLE
Keyword(s):  
Room Temperature ◽  
Silver Salt ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Niobium Pentachloride ◽  
Solvent Free Conditions ◽  
Work Up ◽  
Solvent Free Reaction

A combinatorial library of benzylpyrazolyl coumarin derivatives have been synthesized by a green one-pot four-component reaction between aryl hydrazine/hydrazine hydrate (1), ethyl acetoacetate (2), aromatic aldehydes (3) and 4-hydroxycoumarin (4) catalyzed by niobium pentachloride with silver salt under solvent-free conditions has been developed. Experimental simplicity, simple work-up procedure and solvent-free reaction condition at room temperature are important features of the present protocol.

Choline peroxydisulfate oxidizing Bio-TSIL: triple role player in the one-pot synthesis of Betti bases and gem-bisamides from aryl alcohols under solvent-free conditions

2015 ◽  
Vol 39 (6) ◽  
pp. 4647-4657 ◽  
Author(s):  
Balu L. Gadilohar ◽  
Haribhau S. Kumbhar ◽  
Ganapati S. Shankarling
Keyword(s):  
Solvent Free ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Solvent Free Conditions ◽  
The One

The sequential one-pot multicomponent synthesis of Betti bases and bisamides using biodegradable choline persulfate.

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