Efficient and Practical Solvent-Free Oxidation of Alcohols using Microwave Irradiation

2002 ◽  
Vol 2002 (6) ◽  
pp. 286-287 ◽  
Author(s):  
Mohammad M. Mojtahedi ◽  
Ali Sharifi ◽  
Sharif Kaamyabi ◽  
Mohammad R. Saidi
Keyword(s):  
Microwave Irradiation ◽  
Carbonyl Compounds ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Oxidation Of Alcohols ◽  
Free Oxidation

Alcohols are oxidised rapidly to the corresponding carbonyl compounds by montmorillonite KSF or silica supported barium manganate, under solvent-free conditions and microwave irradiation.

Remarkable Fast Microwave-assisted Zeolite HZSM-5 Catalyzed Oxidation of Alcohols with Chromium Trioxide under Solvent-free Conditions

1999 ◽  
Vol 23 (5) ◽  
pp. 334-335 ◽  
Author(s):  
Majid M. Heravi ◽  
Dariush Ajami ◽  
Kourosh Tabar-Hydar ◽  
Mitra Ghassemzadeh
Keyword(s):  
Microwave Irradiation ◽  
Carbonyl Compounds ◽  
Chromium Trioxide ◽  
Solvent Free ◽  
Microwave Assisted ◽  
Solvent Free Conditions ◽  
Oxidation Of Alcohols ◽  
Catalyzed Oxidation

A variety of alcohols are oxidized to the corresponding carbonyl compounds in excellent yields by chromium trioxide-HZSM-5 zeolite under microwave irradiation in a solventless system.

ChemInform Abstract: Efficient and Practical Solvent-Free Oxidation of Alcohols Using Microwave Irradiation.

ChemInform ◽  
2010 ◽  
Vol 33 (44) ◽  
pp. no-no
Author(s):  
Mohammad M. Mojtahedi ◽  
Ali Sharifi ◽  
Sharif Kaamyabi ◽  
Mohammad R. Saidi
Keyword(s):  
Microwave Irradiation ◽  
Solvent Free ◽  
Oxidation Of Alcohols ◽  
Free Oxidation

Oxidation of Alcohols to Carbonyl Compounds under Solvent-Free Conditions Using Permanganate Supported on Alumina

1999 ◽  
Vol 28 (2) ◽  
pp. 99-100 ◽  
Author(s):  
Abdol Reza Hajipour ◽  
Shadpour E. Mallakpour ◽  
Gholamhasan Imanzadeh
Keyword(s):  
Carbonyl Compounds ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Oxidation Of Alcohols

Silica Gel Supported Sodium Hydrogen Sulfate as an Efficient and Reusable Heterogeneous Catalyst for the Synthesis of Imines in Solvent-free Conditions under Microwave Irradiation

2005 ◽  
Vol 2005 (5) ◽  
pp. 299-303 ◽  
Author(s):  
Mannathusamy Gopalakrishnan ◽  
Purushothaman Sureshkumar ◽  
Vijayakumar Kanagarajan ◽  
Jeyaraman Thanusu ◽  
Ramalingam Govindaraju
Keyword(s):  
Microwave Irradiation ◽  
Heterogeneous Catalyst ◽  
Silica Gel ◽  
Diethyl Ether ◽  
Carbonyl Compounds ◽  
Solvent Free ◽  
Hydrogen Sulfate ◽  
Sodium Hydrogen ◽  
Solvent Free Conditions

This synthesis of imines has been carried out efficiently by the condensation of carbonyl compounds with amines in the presence of silica gel supported sodium hydrogen sulfate (NaHSO4.SiO2) as a heterogeneous catalyst under microwave irradiation in solvent-free conditions. NaHSO4.SiO2 can be recovered and re-used up to ten times by simple washing with diethyl ether after each use and activated in an oven at 120 °C for 1 h, thus rendering the process more economical.

Uncatalysed Preparation of α-Amino Phosphonates under Solvent Free Conditions

2005 ◽  
Vol 2005 (5) ◽  
pp. 324-327 ◽  
Author(s):  
Mohamed Zahouily ◽  
Abdelhakim Elmakssoudi ◽  
Abdessamad Mezdar ◽  
Ahmed Rayadh ◽  
Saïd Sebti
Keyword(s):  
Microwave Irradiation ◽  
Carbonyl Compounds ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
Aliphatic Amines ◽  
Solvent Free Conditions ◽  
Dialkyl Phosphites ◽  
High Yields ◽  
Amino Phosphonates ◽  
Aromatic And Aliphatic Amines

A simple, efficient and environmentally friendly procedure has been developed for the three component coupling of carbonyl compounds, aromatic and aliphatic amines and dialkyl phosphites to produce α-amino phosphonates. The α-amino phosphonates are synthesised in high yields (74–97%) in a few minutes (1–3 min) by microwave irradiation under solvent-free conditions, avoiding the use of any catalyst.

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