A New Protocol for O-Methylation of Phenolic Compounds with Trimethyl Phosphite or Trimethyl Phosphate Under Solvent-Free Condition and Microwave Irradiation

2003 ◽  
Vol 178 (11) ◽  
pp. 2343-2348 ◽  
Author(s):  
Mohammad R. Saidi ◽  
Fatemeh Rajabi
Keyword(s):  
Phenolic Compounds ◽  
Microwave Irradiation ◽  
Solvent Free ◽  
Trimethyl Phosphite ◽  
Trimethyl Phosphate ◽  
Free Condition ◽  
Solvent Free Condition

scholarly journals Facile Condensation of Aromatic Aldehydes with Chroman-4-ones and 1-Thiochroman-4-ones Catalysed by Amberlyst-15 under Microwave Irradiation Condition

2011 ◽  
Vol 8 (2) ◽  
pp. 863-869 ◽  
Author(s):  
Tapas K. Mandal ◽  
Rammohan Pal ◽  
Rina Mondal ◽  
Asok K. Mallik
Keyword(s):  
Microwave Irradiation ◽  
Aldol Condensation ◽  
Aromatic Aldehydes ◽  
Solvent Free ◽  
Environmentally Benign ◽  
High Yield ◽  
Irradiation Condition ◽  
Free Condition ◽  
Amberlyst 15 ◽  
Solvent Free Condition

Different aromatic aldehydes and cinnamaldehyde undergo cross-aldol condensation with chroman-4-ones and1-thiochroman-4-ones in the presence of amberlyst-15 under microwave irradiation in solvent free condition to afford rapidly the correspondingE-3-arylidene andE-3-cinnamylidene derivatives, respectively, in high yield. This process is simple, efficient and environmentally benign.

Microwave assisted Acetylation of Amines using Imidazole Hydrochloride under solvent-free condition

2021 ◽  
Vol 25 (12) ◽  
pp. 116-121
Author(s):  
Anil Chikkulapalli ◽  
S. Sumathi
Keyword(s):  
Microwave Irradiation ◽  
Aromatic Amines ◽  
Solvent Free ◽  
Microwave Irradiation Method ◽  
Free Condition ◽  
Microwave Assisted ◽  
Solvent Free Condition

A simple and novel microwave irradiation method has been developed for N-acetylation of both aliphatic and aromatic amines with N,N-dimethylacetamide via Nacetyl imidazole by using Imidazole hydrochloride under solvent-free condition. The method proved more eco-friendly and economic.

Regeneration of Carbonyl Compounds from Oximes under Microwave Irradiation in Solventless System

2000 ◽  
Vol 55 (5) ◽  
pp. 431-433 ◽  
Author(s):  
Majid M. Heravia ◽  
Dariush Ajami ◽  
Rahim Hekmatshoar ◽  
Yahya Sh. Beheshtiha ◽  
Karim Assadollah ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Carbonyl Compounds ◽  
Solvent Free ◽  
Free Condition ◽  
Simple Reaction ◽  
Chromium Vi ◽  
Solvent Free Condition ◽  
Microwave Irradiations

A new, mild, efficient and environm entally benign method for the cleavage of oximes has been achieved by a simple reaction f oximes with wet alumina supported chromium (VI) oxide under microwave irradiations in solvent-free condition.

Regeneration of Ketones from Semicarbazones in the Solid State on Wet Silica Supported Sodium Bismuthate under Microwave Irradiation

1999 ◽  
Vol 23 (5) ◽  
pp. 320-321
Author(s):  
Alok Kumar Mitra ◽  
Aparna De ◽  
Nilay Karchaudhuri
Keyword(s):  
Solid State ◽  
Microwave Irradiation ◽  
Solvent Free ◽  
Environmentally Benign ◽  
Simple Method ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Sodium Bismuthate

Microwave irradiation of ketosemicarbazones on wet silica supported sodium bismuthate under environmentally benign solvent-free condition provides a fast, efficient and simple method for regeneration of ketones in good yields.

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