Importance of Open Structure of Nonmetal Based Catalyst in Hydrogen Bond Promoted Methanolysis of Activated Amide: Structure Dynamics between Monomer and Dimer Enabling Recombinant Covalent, Dative, and Hydrogen Bonds
作者:Shunsuke Oishi、Junichi Yoshimoto、Susumu Saito
DOI:10.1021/ja9029494
日期:2009.7.1
aminoorganoboron (AOB) compounds that involved a recombinant of covalent, dative, and hydrogen bonds. A combination process occurred via reorganizing elements and bonds between the two major structures (open and closed), which were chemically switchable through precise adjustment of either acidic or basic conditions. The structural dynamics favoring an open structure seem to be more important for catalysis, as represented
Double Molecular Recognition with Aminoorganoboron Complexes: Selective Alcoholysis of β-Dicarbonyl Derivatives
作者:Shunsuke Oishi、Susumu Saito
DOI:10.1002/anie.201200304
日期:2012.5.29
Double duty: Aminoorganoboron (AOB) complexes recognize alcohol and β‐dicarbonyl units, and thereby facilitate chemo‐ and site‐selectivealcoholysis of the latter (see scheme). The complex activates both reaction partners. This strategy enables CC, CN, and CO bond cleavage in addition/elimination reactions under near neutral pH conditions and provides a new method for functional group conversions