Original Research Article Organic Chemistry
1. Caro's Acid-Silica Gel Catalyzed Regioselective Ring Opening of Epoxides with Indoles and Imidazoles under Solvent-Free Conditions

Majid Momahed Heravi; Hoda Hamidi; Narges Karimi; Akram Amouchi

Volume 1, Issue 1 , Summer 2018, Pages 1-6

http://dx.doi.org/10.29088/sami/AJCA.2018.1.16

Abstract
  An efficient and facile procedure has been developed for the ring opening of epoxides with nitrogen heterocycles such as indole and imidazole in the presence of Caro's acid-silica gel (CA-SiO2) as catalyst in solventless system. The reactions were administered underneath Solvent-free conditions. The ...  Read More

Caro's Acid-Silica Gel Catalyzed Regioselective Ring Opening of Epoxides with Indoles and Imidazoles under Solvent-Free Conditions


Original Research Article Organic Chemistry
2. One-Pot Synthesis of Tetracyanocyclopropane Derivatives Using Hexamethylenetetramine-Bromine (HMTAB)

Majid Momahed Heravi; Hossein Abdi Oskooie; Zahra Latifi; Hoda Hamidi

Volume 1, Issue 1 , Summer 2018, Pages 7-11

http://dx.doi.org/10.29088/sami/AJCA.2018.2.711

Abstract
  Herein a direct method for synthesis of tetracyanocyclopropanes by the treatment of carbonyl compounds, malononitrile and hexamethylenetetramine-bromine (HMTAB) is described in the presence of catalytic amount of DABCO in ethanol media at room temperature.  Read More

One-Pot Synthesis of Tetracyanocyclopropane Derivatives Using Hexamethylenetetramine-Bromine (HMTAB)


Original Research Article Theoretical
3. Prediction of two-dimensional gas chromatography time-of-flight mass spectrometry retention times of 160 pesticides and 25 environmental organic pollutants in grape by multivariate chemometrics methods

Issa Amini; Kaushik Pal; Sharmin Esmaeilpoor; Aydi Abdelkarim

Volume 1, Issue 1 , Summer 2018, Pages 12-31

http://dx.doi.org/10.29088/sami/AJCA.2018.3.1231

Abstract
  A quantitative structure–retention relation (QSRR) study was conducted on the retention times of 160 pesticides and 25 environmental organic pollutants in wine and grape. The genetic algorithm was used as descriptor selection and model development method. Modeling of the relationship between selected ...  Read More

Prediction of two-dimensional gas chromatography time-of-flight mass spectrometry retention times of 160 pesticides and 25 environmental organic pollutants in grape by multivariate chemometrics methods


Original Research Article Physical chemistry
4. Heat transfer and fluid flow analysis of a novel micro-miniature cryocooler model

Hussayn Bakhshy; Seyyed Mohammad Ali Rohani; Payam Heydari; Reza Asadi

Volume 1, Issue 1 , Summer 2018, Pages 32-38

http://dx.doi.org/10.29088/sami/AJCA.2018.4.3238

Abstract
  In the current study, a new model for micro-scale cooling systems is presented. The small-scale refrigerator is modeled by engraving channels and a micro nozzle on the sides of a rectangular glass. The system has the capability to reduce the temperature from 300K to 80 in 5 seconds using nitrogen as ...  Read More

Heat transfer and fluid flow analysis of a novel micro-miniature cryocooler model


Original Research Article Analytical chemistry
5. Determination of acetaminophen using a glassy carbon electrode modified by horseradish peroxidase trapped in MWCNTs/silica sol-gel matrix

Javad Ghodsi; Amir Abbas Rafati; Yalda Shoja

Volume 1, Issue 1 , Summer 2018, Pages 39-55

http://dx.doi.org/10.29088/sami/AJCA.2018.5.3955

Abstract
  A new and easy to fabricate voltammetric biosensor for acetaminophen determination was developed based on horseradish peroxidase (HRP) trapped between silica sol-gel film and multi-walled carbon nanotubes on glassy carbon electrode. Acetaminophen determinations were carried out in presence of H2O2 as ...  Read More

Determination of acetaminophen using a glassy carbon electrode modified by horseradish peroxidase trapped in MWCNTs/silica sol-gel matrix


Original Research Article Organic Chemistry
6. Synthesis and chemical modification of maleic anhydride copolymers with 2-amino ethyl benzoate groups

Mohammad Hosein Nasirtabrizi; Seid Jafar Mousavi

Volume 1, Issue 1 , Summer 2018, Pages 56-65

http://dx.doi.org/10.29088/sami/AJCA.2018.6.5665

Abstract
  Maleic anhydride (MAN) copolymers with methyl methacrylate, ethyl methacrylate, methyl acrylate, ethyl acrylate, and butyl acrylate monomers at 1:3 mole ratios were synthesized by free radical polymerization in the presence of azobis(isobutyronitrile) as initiator and dry ethyl acetate as solvent. Copolymer ...  Read More

Synthesis and chemical modification of maleic anhydride copolymers with 2-amino ethyl benzoate groups