2012
Gabriel Navarrete-Vázquez, Alfredo Alaniz-Palacios, Margarita Tlahuextl, Margarita Bernal-Uruchurtu, Hugo Tlahuextl. Intramolecular Hypervalent C=OS interactions in a series of 1,3-benzothiazole derivatives. CrystEngComm, 14, 1256-1263 (2012). DOI: 10.1039/C1CE06106B. Royal Society of Chemistry, Inglaterra. ISSN: 1466-8033
Abstract
Seven compounds derived from 2-(4-chlorophenoxy)-2-methylpropionic acid and 2-aminobenzothiazole, 2-amino-6-methylbenzothiazole, 2-amino-6-methoxybenzothiazole, 2-amino-6-ethoxybenzothiazole, 2-amino-6-chlorobenzothiazole, 2-amino-6-nitrobenzothiazole, and 2-amino-6-(methylsulfonyl) benzothiazole have been prepared and structurally characterized. This set of 1,3-benzothiazole derivatives (17) has been studied by means of elemental analysis, mass spectrometry, IR, NMR (1H, 13C) spectroscopy, and single-crystal X-ray diffraction analysis. This work focuses on the description of the hypervalent contacts (COS, SS), hydrogen bonds YHX (Y = O, N, C; X = O, N, Cl, ?) and van der Waals contacts (Cl?, S?, HH) that are found to be the driving forces for the supramolecular arrangements present in the crystal structures.
Synthesis of Zn compounds derived from 1H-benzimidazol-2-ylmethanamine
Synthesis and structural studies of new N-(p-toluenesulfonyl)amino acid o-phenolamides
Synthesis and structural studies of new N-(p-toluenesulfonyl)amino acid o-phenolamides
Synthesis of Zn compounds derived from 1H-benzimidazol-2-ylmethanamine
1,4,7,8-Triazaborabicyclooctanesfirst examples of new boron heterocycles [1,2]
Three-center intramolecular hydrogen bonding in oxamide derivatives. NMR and X-ray diffraction study