Organic chemistry
1. Nano Al2O3/KF using for synthesis of some Hantzsch type-products

Asadollah Farhadi; Milad Ramyar; Mohammad Ali Takassi

Volume 6, Issue 3, pp. 218-324, Serial No. 20 , Summer 2018, , Pages 266-270

Abstract
  A protocol for the synthesis of 1,4-dihydropyridines (Hantzsch type-products) was developed by means of a three-component condensation of an aldehyde, a β-dicarbonyl compound, ammonium acetate and nano Al2O3/KF as catalyst. This reaction was carried out under different conditions including i) solvent-free ...  Read More

Nano Al2O3/KF using for synthesis of some Hantzsch type-products


Organic chemistry
2. H3PW12O40 as an efficient catalyst for one-pot- tricomponent synthesis of chromeno[4,3-b]quinolones under microwave irradiation

Radineh Motamedi; Sara Sobhani; Farshid Barani

Volume 5, Issue 3, pp. 237-363, Serial No. 16 , Summer 2017, , Pages 338-344

Abstract
  Some Chromeno[4,3-b]quinoline derivatives were synthesized in a tricomponents one-pot reaction of 1,3-cyclohexadione arylaldehydes and 4-aminocoumarin under Microwave irradiation in the solventless system by using a heteropolyacid catalyst ,H3[PW12O40] in 80-95% yields and high rates. The shorter reaction ...  Read More

H3PW12O40 as an efficient catalyst for one-pot- tricomponent synthesis of chromeno[4,3-b]quinolones under microwave irradiation


Organic chemistry
3. Oxidative aromatization of some 1,4-dihydropyridines by aqueous hydrogen peroxide in ethanol

Masoomeh Abdoli; Maryam Hajibabaiee

Volume 3, Issue 2, pp. 72-147, Serial No. 7 , Spring 2015, , Pages 143-147

Abstract
  Some 3, 5-diacyl or 3,5-diester 1,4-dihydropyridines were oxidized to the corresponding pyridine derivatives using hydrogen peroxide in aqueous ethanol in the presence of potassium bromide and acetic acid as the catalysts. The reaction was carried out in ethanol and products were isolated in high to ...  Read More

Oxidative aromatization of some 1,4-dihydropyridines by aqueous hydrogen peroxide in ethanol