Synthesis and characterization of carboxylic acid derivatives of boranes

In this study new borinate compounds derived from several carboxylic acids ( which is include 2,3- pyridinecarboxylic acid, 2,5- pyridinecarboxylic acid, 2-pyridinecarboxylic acid, 2-furancarboxylic acid, 2-tiyofenecarboxylic acid) and boranes were synthesized and fully characterized by 1H, 13C and 11B NMR spectroscopy.The second part of this thesis focused on the synthesis and characterization of Dibromomethyl(dipyrrolidino)borane which is tought an intermediate in synthesis of aminoboryliminium salts. This compound prepared by reaction of Dibromomethyldimetoxyborane and trimethylsilylpyrrolidine. They were characterized by various spectroscopic techniques, which include 1H, 13C and 11B NMR spectroscopy.The third part of this thesis deals with new boron and nitrogen based heterocycles. For this purpose N,N'-2,6- dimethylphenylethylenediamine and N,N'-bis(2,4-dimethylphenyl)-1,2- ethanediimine reacted with aminodiborane(4) in toluene. They were characterized by various spectroscopic techniques, which include 1H, 13C and 11B NMR spectroscopy.Because of the oxygen and moisture sensitivity of compounds, all experiments were carried out under dry argon using standard Schlenk techniques. Structural characterizations of new compounds were made with 1H, 13C and 11B NMR spectroscopy. Moreover, crystal structure of Diphenyl [(2-pyridyl)-carbonyloxy-O, N] borane, 2,3-Bis(Dimethylamino)-1,4- 2,6-Dimethylphenyl-1,4,2,3-Diazadiboriran, 1,1',4,4'-tetrakis(2,6-dimethylphenyl)-bis[1,1',4,4',2,3] diazadiborinan ve 2,3-bis(dimethylamino)-1,4-bis(2,4-dimethylphenyl)-1,4,2,3 diazadiborinen were determined by single-crystal X-ray diffraction.