Original Paper
2. A Novel protocol for synthesis of Hantzsch 1, 4- dihydropyridines using PEG-400 as a reaction medium and under catalyst-free condition

Ali Ezabadi; Fatemeh Tosan

Volume 8, Issue 3 , Autumn 2018, Pages 5-11

Abstract
  An efficient and expeditious catalyst-free procedure was developed for the one- pot synthesis of 1, 4-dihydropyridine derivatives via the three-component reaction of various aldehydes, ethyl acetoacetate, and ammonium acetate in PEG-400. The reaction was carried out at 110°С and the products were ...  Read More

Original Paper
4. Polyethylene glycol embedded tribromide as an efficient and reusable catalyst for the library synthesis of nitrogen containing heterocycles

Sanny Vermaa; Suman L. Jaina

Volume 8, Issue 3 , Autumn 2018, Pages 14-25

Abstract
  Potassium tribromide wrapped around polyethylene glycol ({K+PEG400}Br3-) was easily prepared by two step reaction of PEG400 with KBr followed by the addition of molecular bromine to give PEG embedded potassium tribromide as a dark viscous oil. The synthesized material was found to be an efficient, cost ...  Read More

Original Paper
5. Consideration of C-H…O interaction in the heterocyclic organic-inorganic hybrid material: tri-prolinium12- phosphomolibdate heteropolyoxometalate

Masoud Mirzaei; Ali R. Salimia; Mohammad H. Alizadeh; Hossein Eshtiagh-Hosseini; Hossein Razavi

Volume 8, Issue 3 , Autumn 2018, Pages 26-32

Abstract
  Crystallographic data analyses indicate that  three types of prolinium cations, along with two types of hydrogen  bonding,  produce and stabilize the helical structure of  triprolinium 12-phosphomolybdate. There are similarities between this organic-inorganic compound and peptides/proteins. ...  Read More

Original Paper
6. Investigation into the regioisomeric composition of some fused tetrazoles

Paria Nasehi; Omid Baravaye

Volume 8, Issue 3 , Autumn 2018, Pages 33-40

Abstract
  Treatment of 7-chloro-1-phenylpyrimido[4,5-e][1,3,4]thiadiazines with hydrazine in boiling ethanol gave corresponding7-hydrazinyl derivatives. Diazotization of the latter compounds acheived a mixture of 5H-tetrazolo[1',5':1,2]pyrimido[4,5-e][1,3,4]thiadiazine and 9H-tetrazolo[5',1':2,3]pyrimido[4,5-e][1,3,4]thiadiazines. ...  Read More

Original Paper
7. Brønsted Acidic Ionic Liquid: An Efficient and Reusable Catalyst for the Multi-Component Synthesis of Dihydropyrimidinones under Solvent-Free Conditions

Heshmatollah Alinezhad; Neda Ghobadi

Volume 8, Issue 3 , Autumn 2018, Pages 41-48

Abstract
  An efficient and convenient procedure for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and thiones by condensation of 1,3-dicarbonyl compounds, Aromatic and aliphatic aldehydes, and urea or thiourea in the presence of catalytic amount of Brønsted acidic ionic liquid 3-methyl-1-sulfonic acid ...  Read More