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
Inhibitors of glycolic acid oxidase. 4-Substituted 3-hydroxy-1H-pyrrole-2,5-dione derivatives
作者:C. S. Rooney、W. C. Randall、K. B. Streeter、C. Ziegler、E. J. Cragoe、H. Schwam、S. R. Michelson、H. W. R. Williams、E. Eichler
DOI:10.1021/jm00359a015
日期:1983.5
3-hydroxy-1H-pyrrole-2,5-dione derivatives has been prepared and studied as inhibitors of glycolicacid oxidase (GAO). Compounds possessing large lipophilic 4-substituents are, in general, potent, competitive inhibitors of porcine liver GAO in vitro. Methylation of the nitrogen or the 3-hydroxy substituent reduced potency dramatically, indicating the requirement for the two acidic functions on the 1H-pyrrole-2
Retracted Article: Synthesis and characterization of Co/Ti layered double hydroxide and its application as a photocatalyst for degradation of aqueous Congo Red
作者:Priyadarshi Roy Chowdhury、Krishna G. Bhattacharyya
DOI:10.1039/c5ra19106h
日期:——
Hydrothermally synthesized 2 : 1 Co/Ti LDH exhibits remarkable visible light assisted degradation of Congo Red (∼99.7%) to simple and less toxic molecules than the parent carcinogenic dye.
A convenient enantioselective synthesis of trans-2-aryloxycyclohexan-1-ols using pig liver acetone powder (PLAP) as biocatalyst
作者:Deevi Basavaiah、Peddinti Rama Krishna、Tirumala K Bharathi
DOI:10.1016/0957-4166(95)00029-o
日期:1995.2
Pig liveracetonepowder (PLAP) has been used as a biocatalyst for enantioselective hydrolysis of racemic trans-1-acetoxy-2-aryloxycyclohexannes to produce the resulting (R,R)-2-aryloxycyclohexan-1-ols upto >99% enantiomeric purities. (R,R)-Selectivity in this hydrolysis of racemic trans-2-aryloxycyclohexyl acetates was explained on the basis of Jones' three dimensional active site-model.
Tuning Reactivity and Electronic Properties through Ligand Reorganization within a Cerium Heterobimetallic Framework
作者:Jerome R. Robinson、Zachary Gordon、Corwin H. Booth、Patrick J. Carroll、Patrick J. Walsh、Eric J. Schelter
DOI:10.1021/ja410688w
日期:2013.12.18
Cerium compounds have played vital roles in organic, inorganic, and materials chemistry due to their reversible redoxchemistry between trivalent and tetravalent oxidation states. However, attempts to rationally access molecular cerium complexes in both oxidation states have been frustrated by unpredictable reactivity in cerium(III) oxidation chemistry. Such oxidation reactions are limited by steric