title: Synthesis and characterization of two novel organic-inorganic compounds based on tetrahexyl and tetraheptyl ammonium ions and the Preyssler anion and their catalytic activities in the synthesis of 4-aminopyrazolo[3,4-d]- pyrimidines.
abstract: Two novel organic-inorganic compounds based on tetrahexylammonium (THA) and tetraheptylammonium (THPA) ions and the Preyssler anion, [NaP5W30O110]14-, were synthesized and formulated as (THA)7.7H6.3 [NaP5W30O110] (A) and (THPA)7.5 H6.5[NaP5W30O110] (B). The synthesized compounds were characterized by IR, UV, and TGA and used for the catalytic synthesis of 4-aminopyrazolo[3,4,-d]pyrimidine derivatives 2a-2d. Our findings showed efficient catalytic activities for A and B.
authors.affiliation: Department of Chemistry, Islamic Azad University, Mashhad -Branch, Mashhad, Iran. fbamoharram@mshdiau.ac.ir
authors.forename: Fatemeh Farrash
authors.initials: FF
authors.lastname: Bamoharram
mesh_terms: D000225:Adenine / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D002384:Catalysis; D003217:Conductometry; D011199:Potentiometry; D011743:Pyrimidines / Q000138:chemical synthesis*; D000644:Quaternary Ammonium Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013818:Thermogravimetry; D017973:Tungsten Compounds / Q000138:chemical synthesis*
chemical_list: D011743:Pyrimidines; D000644:Quaternary Ammonium Compounds; D017973:Tungsten Compounds; C055292:tetrahexylammonium; C004420:4-aminopyrazolo(3,4-d)pyrimidine; D000225:Adenine