Organic chemistry
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 , July 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
Nickel ferrite as a recyclable nanocatalyst for synthesis of novel highly substituted 1,4-dihydropyrano[2,3-c]pyrazole derivatives

Mohammad Reza Poor Heravi; Naheed Morsalie

Volume 6, Issue 1, pp. 1-108, Serial No. 18 , January 2018, , Pages 87-96

Abstract
  Highly substituted 1,4-dihydropyrano[2,3-c]pyrazole derivatives were synthesized by four-component reaction of aromatic aldehydes, malononitrile, ethyl acetoacetate and various phenylhydrazine, using nickel ferrite as a recyclable nanocatalyst by a grinding method under solvent-free and thermal conditions. ...  Read More

Nickel ferrite as a recyclable nanocatalyst for synthesis of novel highly substituted 1,4-dihydropyrano[2,3-c]pyrazole derivatives


Organic chemistry
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 , July 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
1,3-Disulfonic acid imidazolium hydrogen sulfate {[Dsim]HSO4} as a highly efficient, recyclable and green catalyst for the preparation of α,α´-bis(arylidene)cycloalkanones

Abdolkarim Zare; Mahshad Rezaei; Alireza Hasaninejad

Volume 4, Issue 1, pp. 1-132, Serial No. 10 , January 2016, , Pages 94-101

Abstract
  A highly efficient and simple method for the preparation of α,α´-bis(arylidene)cycloalkanones under solvent-free conditions has been developed. The crossed-aldol condensation of cycloalkanones (1 eq.) with arylaldehydes (2 eq.) in the presence of 2.5 mol% of ionic liquid 1,3-disulfonic ...  Read More

1,3-Disulfonic acid imidazolium hydrogen sulfate {[Dsim]HSO4} as a highly efficient, recyclable and green catalyst for the preparation of α,α´-bis(arylidene)cycloalkanones