Application of magnetic nanoparticle-supported CuBr: a highly efficient and reusable catalyst for the one-pot and scale-up synthesis of 1,2,3-triazoles under microwave-assisted conditions

2013 ◽  
Vol 3 (5) ◽  
pp. 1301 ◽  
Author(s):  
Xingquan Xiong ◽  
Lei Cai
Keyword(s):  
Magnetic Nanoparticle ◽  
Scale Up ◽  
Reusable Catalyst ◽  
One Pot ◽  
Microwave Assisted ◽  
Highly Efficient ◽  
The One

Inorganic–organic hybrid silica based tin complex as a novel, highly efficient and recyclable heterogeneous catalyst for the one-pot preparation of spirooxindoles in water

2014 ◽  
Vol 43 (42) ◽  
pp. 15791-15797 ◽  
Author(s):  
Ramin Ghahremanzadeh ◽  
Zahra Rashid ◽  
Amir-Hassan Zarnani ◽  
Hossein Naeimi
Keyword(s):  
Heterogeneous Catalyst ◽  
Silica Gel ◽  
Reusable Catalyst ◽  
One Pot ◽  
Organic Hybrid ◽  
Highly Efficient ◽  
Hybrid Silica ◽  
The One ◽  
Recyclable Heterogeneous Catalyst

A tin complex immobilized on silica gel was prepared and applied as a green and heterogeneous reusable catalyst for one-pot three-component synthesis of spirooxindoles in water.

scholarly journals Microwave-Assisted Three-Component “Catalyst and Solvent-Free” Green Protocol: A Highly Efficient and Clean One-Pot Synthesis of Tetrahydrobenzo[b]pyrans

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Sougata Santra ◽  
Matiur Rahman ◽  
Anupam Roy ◽  
Adinath Majee ◽  
Alakananda Hajra
Keyword(s):  
Knoevenagel Condensation ◽  
One Pot ◽  
Green Protocol ◽  
Microwave Assisted ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
Purification Technique ◽  
The One ◽  
High Yields ◽  
Operational Simplicity

A green and highly efficient method has been developed for the one-pot synthesis of tetrahydrobenzo[b]pyrans via a three-component condensation of aldehydes, 1,3-cyclic diketones, and malononitrile under MW irradiation without using any catalyst and solvent. This transformation presumably occurs by a sequential Knoevenagel condensation, Michael addition, and intramolecular cyclization. Operational simplicity, solvent and catalyst-free conditions, the compatibility with various functional groups, nonchromatographic purification technique, and high yields are the notable advantages of this procedure.

scholarly journals Melamine Trisulfonic Acid as a Highly Efficient and Reusable Catalyst for the Synthesis of β-Acetamido Ketones

2012 ◽  
Vol 9 (4) ◽  
pp. 2322-2331 ◽  
Author(s):  
Abdolkarim Zare
Keyword(s):  
Sulfonic Acid ◽  
Room Temperature ◽  
Acetyl Chloride ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Reusable Catalyst ◽  
One Pot ◽  
Highly Efficient ◽  
The One ◽  
Melamine Trisulfonic Acid

A highly efficient protocol for the one-pot multi-component condensation of acetophenones with aromatic aldehydes, acetonitrile and acetyl chloride in the presence of melamine trisulfonic acid (MTSA) as a highly efficient and recyclable sulfonic acid-containing catalyst at room temperature is described. In this method, β-acetamido ketone derivatives are obtained in high to excellent yields and in relatively short reaction times.

A highly efficient and green approach for the synthesis of pyrimido[4,5-b]quinolines using N,N-diethyl-N-sulfoethanaminium chloride

2021 ◽  
Vol 76 (2) ◽  
pp. 85-90
Author(s):  
Abdolkarim Zare ◽  
Manije Dianat
Keyword(s):  
Reaction Times ◽  
Solvent Free ◽  
One Pot ◽  
Catalyst Amount ◽  
Green Protocol ◽  
Highly Efficient ◽  
Green Approach ◽  
Solvent Free Conditions ◽  
The One ◽  
High Yields

Abstract A highly efficient and green protocol for the synthesis of pyrimido[4,5-b]quinolines has been described. The one-pot multicomponent reaction of dimedone with arylaldehydes and 6-amino-1,3-dimethyluracil in the presence of N,N-diethyl-N-sulfoethanaminium chloride ([Et3N–SO3H][Cl]) as an ionic liquid (IL) catalyst under solvent-free conditions afforded the mentioned compounds in high yields and short reaction times. Our protocol is superior to many of the reported protocols in terms of two or more of these factors: the reaction times, yields, conditions (solvent-free versus usage of organic solvents), temperature and catalyst amount.

Pt NPs@GO as a highly efficient and reusable catalyst for one-pot synthesis of acridinedione derivatives

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49295-49300 ◽  
Author(s):  
Handan Pamuk ◽  
Burak Aday ◽  
Fatih Şen ◽  
Muharrem Kaya
Keyword(s):  
Aromatic Aldehydes ◽  
Reusable Catalyst ◽  
One Pot ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
First Time

Pt NPs@GO has been used for the first time for synthesizing acridinedione from dimedone, aromatic aldehydes and various amines as a catalyst.

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