Trityl Chloride (TrCl): Efficient and Homogeneous Organocatalyst for the Solvent-Free Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthenes by in situ Formation of Carbocationic System

2012 ◽  
Vol 59 (7) ◽  
pp. 860-865 ◽  
Author(s):  
Abdolkarim Zare ◽  
Maria Merajoddin ◽  
Fereshteh Abi ◽  
Ahmad Reza Moosavi-Zare ◽  
Mohammad Mokhlesi ◽  
...  
Keyword(s):  
Solvent Free ◽  
In Situ Formation ◽  
Solvent Free Synthesis

Organocatalyst trityl chloride efficiently promoted the solvent-free synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones by in situ formation of carbocationic system in neutral media

2012 ◽  
Vol 20 ◽  
pp. 54-57 ◽  
Author(s):  
Ardeshir Khazaei ◽  
Mohammad Ali Zolfigol ◽  
Ahmad Reza Moosavi-Zare ◽  
Abdolkarim Zare ◽  
Mahmoud Khojasteh ◽  
...  
Keyword(s):  
Solvent Free ◽  
Neutral Media ◽  
In Situ Formation ◽  
Solvent Free Synthesis

scholarly journals Investigation on the reactivity of α-azidochalcones with carboxylic acids: Formation of α-amido-1,3-diketones and highly substituted 2-(trifluoromethyl)oxazoles

2015 ◽  
Vol 11 ◽  
pp. 2021-2028 ◽  
Author(s):  
Kandasamy Rajaguru ◽  
Arumugam Mariappan ◽  
Rajendran Suresh ◽  
Periasamy Manivannan ◽  
Shanmugam Muthusubramanian
Keyword(s):  
Microwave Irradiation ◽  
Carboxylic Acids ◽  
Trifluoroacetic Acid ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
In Situ Formation ◽  
Lower Temperature

The reaction of α-azidochalcones with carboxylic acids has been investigated resulting in the formation of α-amido-1,3-diketones under microwave irradiation via in situ formation of 2H-azirine intermediates. An interesting reaction is described wherein, with trifluoroacetic acid at lower temperature, it affords highly substituted 2-(trifluoromethyl)oxazoles. These flexible transformations proceed under solvent free conditions in good to excellent yields without any catalyst.

A solvent-free in situ synthesis of a hierarchical Co-based zeolite catalyst and its application to tuning Fischer–Tropsch product selectivity

2018 ◽  
Vol 8 (11) ◽  
pp. 2802-2808 ◽  
Author(s):  
Brighton Mazonde ◽  
Shilin Cheng ◽  
Guihua Zhang ◽  
Mudassar Javed ◽  
Weizhe Gao ◽  
...  
Keyword(s):  
Zeolite Catalyst ◽  
In Situ Synthesis ◽  
Solvent Free ◽  
Product Selectivity ◽  
Fischer Tropsch ◽  
Hierarchical Pore Structure ◽  
Waste Production ◽  
Hierarchical Pore ◽  
Solvent Free Synthesis

As a distinctive supportable route, the solvent-free synthesis of zeolites not only minimizes the problems of conversional hydrothermal synthesis, but also greatly increases the product yields with advantageous characteristics, such as reduced waste production and a hierarchical pore structure.

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