Volume 4, Issue 2

 

ارسال های اخیر

  • conformational properties and the anomeric effect study of phosphinanes 

    Azizian, Javad؛ Entezari, Mahdieh؛ Anaraki Ardakani, Hossein؛ Zomorodbakhsh, Shahab (Islamic Azad University Ahvaz Branch, 2014-09-01)
    Ab initio HF/6-31G* Methode was employed to calculate the bond length in 2- phosphinanes when electronegative groups was at C-2 tend axial and equatorial positions. The magnitude of the anomeric effect depends on the nature ...

  • preparation of 3, 4-dihydropyrimidin-2(1H)-ones using quaternary ammonium- treated clay in water 

    Sayyahi, Soheil؛ Jahanbakhshi, Sedigheh؛ Dehghani, Zahra (Islamic Azad University Ahvaz Branch, 2014-09-01)
    In this study, a variety of 3, 4-dihydropyrimidin-2(1H)-ones derivatives were synthesized via three-component Biginelli reaction. The quaternary ammonium- treated clay -catalyzed process proved to be simple, efficient, and ...

  • arylaminotetrazoles : via [2+3] cycloaddition of nitriles and sodium azide via solid acid catalysis 

    Teimouri, Abbas؛ Najafi Chermahini, Alireza (Islamic Azad University Ahvaz Branch, 2014-09-01)
    The [3+2] cycloaddition between various nitriles and sodium azide proceeds smoothly in the presence of zeolite and sulfated Zircona as effective catalyst and in the water and DMF/MeOH, to give the corresponding arylaminotetrazoles ...

  • Aminolysis of selected methylpyrimidines in protic solvents 

    Eshtiagh-Hosseini, Hossein؛ Mirzaei, Masoud (Islamic Azad University Ahvaz Branch, 2014-09-01)
    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 ...

  • Novel synthesis of Pyrimido[4,5- e] [1,3,4] thiadiazines 

    Doulah, Abdolhassan (Islamic Azad University Ahvaz Branch, 2014-09-01)
    Treatment of 1-(5-bromo-2-chloro-6-methylpyrimidin-4-yl)-1-methylhydrazine with dimethylthiocarbamoylchloride gave 7-chloro-N,N,1,5-tetramethyl-1H-pyrimido[4,5-e][1,3,4]thiadiazin-3-amine in basic acetonitrile. The latter ...