An Environmentally Friendly Oxidation System for the Selective Oxygenation of Aldimines to Oxaziridines with Anhydrous TBHP and Alumina-Supported MoO3 as a Recyclable Heterogeneous Catalyst

2007 ◽  
Vol 2007 (13) ◽  
pp. 2051-2054 ◽  
Author(s):  
Sweety Singhal ◽  
Suman L. Jain ◽  
V. V. D. N. Prasad ◽  
Bir Sain
Keyword(s):  
Heterogeneous Catalyst ◽  
Environmentally Friendly ◽  
Recyclable Heterogeneous Catalyst ◽  
Oxidation System

scholarly journals H3PW12O40: An Efficient and Recyclable Heterogeneous Catalyst for the Selective Synthesis of 2-Aryl-5,6-dihydro-4H-1,3-oxazines and 2-Aryl-1,4,5,6-tetrahydropyrimidines

2010 ◽  
Vol 65 (4) ◽  
pp. 461-469 ◽  
Author(s):  
Iraj Mohammadpoor-Baltork ◽  
Majid Moghadam ◽  
Shahram Tangestaninejad ◽  
Valiollah Mirkhani ◽  
Zohre Eskandari
Keyword(s):  
Heterogeneous Catalyst ◽  
High Purity ◽  
Environmentally Friendly ◽  
Thermal Conditions ◽  
Selective Synthesis ◽  
Reaction Conditions ◽  
Efficient Procedure ◽  
Mw Irradiation ◽  
High Yields ◽  
Recyclable Heterogeneous Catalyst

An environmentally friendly and highly efficient procedure has been developed for the selective synthesis of 2-aryl-5,6-dihydro-4H-1,3-oxazines and 2-aryl-1,4,5,6-tetrahydropyrimidines by cyclocondensation of arylnitriles with 3-amino-1-propanol and 1,3-diaminopropane in the presence of catalytic amounts of H3PW12O40 under thermal conditions and MW irradiation. Under the same reaction conditions, dicyanobenzenes are transformed to their corresponding mono-oxazines and monotetrahydropyrimidines with excellent chemoselectivity. These reactions are simple and clean, giving the products in high yields and high purity. The catalyst can be easily recovered after the reaction and reused efficiently in subsequent runs.

Niobic Acid as a Recyclable Heterogeneous Catalyst for the Solvent-Free Synthesis of Substituted Benzimidazoles

2013 ◽  
Vol 1 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Beatriz Vieira ◽  
Angelita Barcellos ◽  
Ricardo Schumacher ◽  
Eder Lenardao ◽  
Diego Alves
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Niobic Acid ◽  
Recyclable Heterogeneous Catalyst ◽  
Solvent Free Synthesis

Silica-supported bismuth(III) chloride as a new recyclable heterogeneous catalyst for the Paal–Knorr pyrrole synthesis

2012 ◽  
Vol 708-709 ◽  
pp. 25-30 ◽  
Author(s):  
Kioumars Aghapoor ◽  
Leila Ebadi-Nia ◽  
Farshid Mohsenzadeh ◽  
Mina Mohebi Morad ◽  
Yadollah Balavar ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Recyclable Heterogeneous Catalyst

Biomass Waste-Derived Recyclable Heterogeneous Catalyst for Aqueous Aldol Reaction and Depolymerization of PET Waste

2021 ◽  
Author(s):  
Z. T Laldinpuii ◽  
C Lalmuanpuia ◽  
Samson Lalhmangaihzuala ◽  
Vanlalngaihawma Khiangte ◽  
Zodinpuia Pachuau ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Aldol Reaction ◽  
Orange Peel ◽  
Biomass Waste ◽  
Pet Waste ◽  
Recyclable Heterogeneous Catalyst

In this work, we discuss the valorization of biomass waste-derived orange peel ash (OPA) by exploring its applicability as a heterogeneous catalyst in aqueous aldol reaction and demonstrating its versatility...

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