Ring Opening of Organosilicon-Substituted Benzoxazolinone: A Convenient Route to Chelating Ureato and Carbamido Ligands Jörg Wagler Anthony F. Hill 10.1021/om800796z.s009 https://acs.figshare.com/articles/dataset/Ring_Opening_of_Organosilicon_Substituted_Benzoxazolinone_A_Convenient_Route_to_Chelating_Ureato_and_Carbamido_Ligands/2891038 <i>N</i>-Silylated benzoxazolin-2-one reacts with N−H and C−H acidic heterocycles (benzoxazolinone, 3,5-dimethylpyrazole, <i>N</i>-methylimidazole) under benzoxazolinone ring cleavage and formation of <i>ortho</i>-siloxyphenyl-substituted ureas and carbamides, respectively. These products were shown to serve as sources for tridentate (O′NO) and (N′NO) chelating ligands. 2008-12-22 00:00:00 Benzoxazolinone tridentate ligand source Convenient Route acidic chelating urea heterocycle Carbamido formation carbamide Chelating Ureato benzoxazolinone ring cleavage dimethylpyrazole