An efficient synthesis of arylaminotetrazoles as via [2+3] cycloaddition of nitriles and sodium azide via solid acid catalysis
الموضوعات : International Journal of Heterocyclic ChemistryAbbas Teimouri 1 , Alireza Najafi Chermahini 2
1 - Payame Noor University (PNU), Isfahan, Iran
2 - bDepartment of Chemistry, Yasouj University, Yasouj, Iran
الکلمات المفتاحية: zeolite, Sulfated Zirconia, Green synthesis, arylaminotetrazoles,
ملخص المقالة :
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 in good to high yields. The reaction most probably precedes through the in situ formation of a catalyst azide species, followed by a successive [3+2] cycloaddition with the nitriles. This method has the advantages of high yields, simple methodology,and easy work-up. The catalyst can be recovered by simple filtration and reused in good yields.
