This project includes three major sections. The first section contains synthesis and study of new aryloxy tetrazoles with axial chirality. The aryloxy tetrazoles of binaphthol (2'-(1 H -tetrazol-5-yloxy) 1,1'-binaphthalen-2-ol compounds 1 and 5-{[2'(1 H -tetrazol-5-yloxy)-1,1'-binaphthalen-2-yl]oxy}-1 H -tetrazole compound 2) and 2-methoxy-2'-hydroxy binaphthyl tetrazole, compound 5 were synthesized in both racemic and optically active form. Moreover a method for resolving enantiomers of 5 is introduced . Mesitiloxy tetrazole and 5 reacted with tosyl chloride to obtain the corresponding imidoyl azides. The imidoyl azides then was utilized in asymmetric synthesis of a dozen of new compounds. Additionally a mild and one pot synthesis of acyl azides from carboxylic acides by using cyanogens bromide was achieved. All products described above were fully identified by spectroscopic and physical constant methods. In the second section dymnamic NMR investigation of N '-[3-azatricyclo [3.2.1.0. 2,4 ] oct-3yl)-mesityloxy) methylene]-1-benzensulfunamide 9 and 2'-Methoxy-1,1'-binaphthalene-2-yl N -[(4-methylphenyl)sulfonyl]-3-azatricyclo [3.2.1.0 2,4 ] octane-3-carboximidoate 10 was performed. The inversion barrier for aziridine nitrogen was found 11.95 and 11.45 for 9 and 10, respectively. The third section describes the quantum mechanical studies of compounds 4 , 5 and N -2-(1,4-dioxane)- N '-(4-methoxybenzenesulfunyl)- O -(4-methylphenoxy) isourea 26 by DFT and ab initio methods. In this section the structure and rotation barrier of compounds 4 and 5 was obtained. For compound 26 anomeric effect and axial-equatorial population was investigated by DFT method.