Organic chemistry
Synthesis of 2-aryl-1H-benzo[d]imidazole derivatives using nano montmorillonite clay as an efficient catalyst

Mohammad Alikarami; Ahmad Nikseresht; Tayebeh Amoozadeh

Volume 8, Issue 1 , January 2020, , Pages 42-48

https://doi.org/10.30473/icc.2019.45788.1538

Abstract
  Benzimidazoles are among the most important nitrogen-containing heterocyclic compounds that have many pharmaceutical applications; including, antitumor, anticancer, anticorrosive, antibacterial, irritant and enzymatic interceptors. In this research, the synthesis of benzimidazoles using o-phenylenediamine ...  Read More

Synthesis of 2-aryl-1H-benzo[d]imidazole derivatives using nano montmorillonite clay as an efficient catalyst


Organic chemistry
1,3-Dichloro-5,5-dimethyl hydantoin and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide as efficient catalysts for the methoxymethylation of alcohols under solvent-free conditions

Abbas Amini Manesh; Ardeshir Khazaei; Maedeh Gohari; Mahdieh Chegeni; Shahnaz Saednia

Volume 5, Issue 3, pp. 237-363, Serial No. 16 , July 2017, , Pages 308-314

Abstract
  Methoxymethylation of a variety of alcohols was performed using formaldehyde dimethyl acetal in the presence of 1,3-dichloro-5,5-dimethyl hydantoin [DCDMH] and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide [PBNS] as catalysts at room temperature and under solvent-free conditions. Our experiments ...  Read More

1,3-Dichloro-5,5-dimethyl hydantoin and Poly N,N′-dibromo-N-ethyl naphthyl-2,7-disulfonamide as efficient catalysts for the methoxymethylation of alcohols under solvent-free conditions


Organic chemistry
A novel and efficient synthesis of bisindolyl methanes with using silica-supported 3-(triethoxysilyl) propane-1-ammonium chloride as reusable catalyst under solvent free conditions

Mohammad Reza Poor Heravi; Aazam Monfared Monfared; Masoumeh Ahmadi

Volume 4, Issue 4, pp. 359-490, Serial No. 13 , October 2016, , Pages 433-448

Abstract
  A facile and efficient synthesis of bis(indolyl)methanes derivatives (3a-u) was reported via a condensation reaction of aldehydes and indole in the presence of by silica-supported-3-(triethoxysilyl) propane-1-ammonium chloride catalysis under solvent free conditions. We studied the reaction in different ...  Read More

A novel and efficient synthesis of bisindolyl methanes with using silica-supported 3-(triethoxysilyl) propane-1-ammonium chloride as reusable catalyst under solvent free conditions


Organic chemistry
One-pot multicomponent reaction for the synthesis of 2-amino-4-chromenes promoted by 1-methyl imidazoliumiodide [mim]Cl ionic- liquid catalyst under solvent-free conditions

Mohammad Reza Poor Heravi; Mohammad Amirloo

Volume 3, Issue 1, pp. 1-71, Serial No.6 , January 2015, , Pages 62-71

Abstract
  A simple, clean, and environmentally benign three-component process for the synthesis of 2-amino-4Hchromenes using [mim]Cl, as an efficient catalyst under solvent-free conditions are described. A wide range of aromatic aldehydes easily undergoes condensations with 1-naphthol and malononitrile under solvent-free ...  Read More

One-pot multicomponent reaction for the synthesis of 2-amino-4-chromenes promoted by 1-methyl imidazoliumiodide [mim]Cl ionic- liquid catalyst under solvent-free conditions


Organic chemistry
Dipyridine cobalt chloride as an efficient and chemoselective catalyst for the synthesis of 1,1-diacetates under solvent-free conditions

Sobhan Rezayati; Zahra Erfani; Saman Rezayati; Rahimeh Hajinasiri; Marzieh Rekavandi

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , January 2014, , Pages 72-81

Abstract
  1,1-Diacetates(acylals) were prepared by direct condensation of various aldehydes with acetic anhydride using dipyridine cobalt chloride (CoPy2Cl2) as an efficient and green catalyst under solvent-free conditions at room temperature. The important features of this catalyst method are that the catalyst ...  Read More

Dipyridine cobalt chloride as an efficient and chemoselective catalyst for the synthesis of 1,1-diacetates under solvent-free conditions