Solvent-Free Synthesis of 2-(1H-Benzimidazol-1-ylmethyl)-4-substituted 1-Hydroxyaryl by the Two Component Mannich Reaction between 6H,13H-5:12,7:14-Dimethanedibenzo-[d,i][1,3,6,8]tetraazecine (DMDBTA) and Phenols

Heterocycles ◽  
2008 ◽  
Vol 75 (7) ◽  
pp. 1651 ◽  
Author(s):  
Augusto Rivera ◽  
Miguel Angel Navarro ◽  
Jaime R弛s-Motta
Keyword(s):  
Mannich Reaction ◽  
Solvent Free ◽  
Two Component ◽  
Substituted 1 ◽  
Solvent Free Synthesis

Microwave-Expedited One-Pot, Two-Component, Solvent-Free Synthesis of Functionalized Pyrimidines.

ChemInform ◽  
2007 ◽  
Vol 38 (27) ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Subrata Jana ◽  
Swapan Dey ◽  
Avijit Kumar Adak
Keyword(s):  
Solvent Free ◽  
One Pot ◽  
Two Component ◽  
Solvent Free Synthesis

Expanded perlite: an inexpensive natural efficient heterogeneous catalyst for the green and highly accelerated solvent-free synthesis of 5-substituted-1H-tetrazoles using [bmim]N3 and nitriles

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104087-104094 ◽  
Author(s):  
Roya Jahanshahi ◽  
Batool Akhlaghinia
Keyword(s):  
Heterogeneous Catalyst ◽  
Solvent Free ◽  
Expanded Perlite ◽  
Substituted 1 ◽  
Accelerated Protocol ◽  
Solvent Free Synthesis ◽  
Efficient Heterogeneous Catalyst

A versatile, green and highly accelerated protocol for preparing 5-substituted-1H-tetrazoles is reported using expanded perlite as a heterogeneous catalyst.

Microwave-Expedited One-Pot, Two-Component, Solvent-Free Synthesis of Functionalized Pyrimidines

2007 ◽  
Vol 60 (2) ◽  
pp. 120 ◽  
Author(s):  
Shyamaprosad Goswami ◽  
Subrata Jana ◽  
Swapan Dey ◽  
Avijit Kumar Adak
Keyword(s):  
Microwave Irradiation ◽  
Ethyl Cyanoacetate ◽  
Solvent Free ◽  
Combinatorial Type ◽  
One Pot ◽  
Dicarbonyl Compounds ◽  
Solvent Free Conditions ◽  
Two Component ◽  
One Step ◽  
Solvent Free Synthesis

The synthesis of a series of diversely substituted pyrimidines under solvent-free conditions in good yields is described. Under microwave irradiation, a variety of nucleophilic substrates containing the N–C–N unit with β-dicarbonyl compounds, ethyl cyanoacetate, malononitrile, and chalcones was cyclized to give pyrimidines. A combinatorial type approach for a one-step synthesis has been developed where a ring-closing condensation is followed by spontaneous aromatization to afford 28 functionalized and aryl/alkyl substituted pyrimidines.

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