Original Research Article
1. Melamine trisulfonic acid as a highly efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions

Abdolkarim Zare; Fatemeh Monfared

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 1-17

Abstract
  Melamine trisulfonic acid (MTSA) is utilized as a highly efficient catalyst for the solvent-free condensation reaction of 2-naphthol (2 eq.) with arylaldehydes (1 eq.) under conventional thermal as well as microwave conditions to give the d  Read More

Melamine trisulfonic acid as a highly efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions


Original Research Article Organic chemistry
2. Synthesis and characterization of derived imines from 4-imino-5,6,7,8-tetrahydro-1-benzothieno[2,3-d]pyrimidin-3(4H)-amine

Mehdi Soleimany; Jalil Lari; Hooshang Vahedi

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 18-26

Abstract
  The synthesis and characterization of derived imines from 4-imino-5,6,7,8-tetrahydro-1-benzo thieno[2,3-d]pyrimidin-3(4H)-amine 3 has been developed in 3 steps through the reaction of heteroaromatic o-aminonitrile 1 with triethyl orthoformate afforded the corresponding imido ester 2 followed by cyclization ...  Read More

Synthesis and characterization of derived imines from 4-imino-5,6,7,8-tetrahydro-1-benzothieno[2,3-d]pyrimidin-3(4H)-amine


Original Research Article Nanochemistry
3. Catalytic application of an organosuperbase denderon grafted on mesoporous SBA-15 and related palladium complex in the aerobic oxidation of alcohols

Hojat Veisi; Davood Kordestani; Sami Sajjadifar; Mona Hamelian

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 27-33

Abstract
  An efficient synthetic method for successful synthesis of amine denderon on SBA-15 and related Pd (II) complex has been developed. This modified mesoporous material was characterized by various techniques such as TEM, XRD, atomic absorption spectroscopy, N2 adsorption-desorption, and FT-IR. The catalytic ...  Read More

Catalytic application of an organosuperbase denderon grafted on mesoporous SBA-15 and related palladium complex in the aerobic oxidation of alcohols


Original Research Article Organic chemistry
4. Isolation, identification and characterization of lawsone from henna leaves powder with soxhlet technique

Mehrdad Mahkam; Mehdi Nabati; Hadieh Rahbar Kafshboran

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 34-38

Abstract
  Lawsone a natural pigment present in the henna leaves has been used as a skin and hair dye since 1400 BC. The concentration of this natural compound in leaves varies from place to place depending upon many of the environmental factors and the highest quantity reported so far is about 1% of the dry mass. ...  Read More

Isolation, identification and characterization of lawsone from henna leaves powder with soxhlet technique


Original Research Article Organic chemistry
5. Potassium carbonate: a highly efficient catalyst for the acylation of alcohols, phenols and thiols under mild conditions

Mostafa Kazemi; Homa Kohzadi; Zahra Noori

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 39-47

Abstract
  A general, mild and efficient protocol has been developed for the synthesis of esters and thioesters. The process has been taking place using tetra n-butylammonium iodide (TBAI) as a phase-transfer catalyst and in the presence of potassium carbonate (K2CO3). A wide range of esters and thioesters was ...  Read More

Potassium carbonate: a highly efficient catalyst for the acylation of alcohols, phenols and thiols under mild conditions


Original Research Article
6. A practical and convenient method for the synthesis of anesthetic drug thiopental: using thiourea and sodium ethoxide

Hojat Narimani; Mostafa kazemi; Homa Kohzadi

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 48-55

Abstract
  A general, simple, practical and convenient method has been described for the synthesis of anesthetic drug thiopental using thiourea in the presence of sodium ethoxide. Anesthetic drug of thiopental was prepared in two stages; during the first stage, the alkylation of mthyl cyanoacetate was performed ...  Read More

A practical and convenient method for the synthesis of anesthetic drug thiopental: using thiourea and sodium ethoxide


Original Research Article Nanochemistry
7. An improved structure models to explain retention behavior of atmospheric nanoparticles

Sharmin Esmaeilpoor; Zahra Shirzadi; Hadi noorizadeh

Volume 2, Issue 1, pp. 1-81, Serial No. 2 , Winter 2014, Pages 56-71

Abstract
  The quantitative structure-retention relationship (QSRR) of nanoparticles in roadside atmosphere against the comprehensive two-dimensional gas chromatography which was coupled to high-resolution time-of-flight mass spectrometry was studied. The genetic algorithm (GA) was employed to select the variables ...  Read More

An improved structure models to explain retention behavior of atmospheric nanoparticles


Original Research Article Organic chemistry
8. 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 , Winter 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