6188-63-2Relevant articles and documents
Steric and Electronic Effects of Methyl Substitutents at the 2- and 6-Positions on N-Benzyl-1,4-dihydronicotinamide
Takeda, Jun,Ohta, Shigeru,Hirobe, Masaaki
, p. 2661 - 2667 (2007/10/02)
N-Benzyl-1,4-dihydronicotinamides having 2-methyl, 6-methyl and 2,6-dimethyl substituents were prepared and their reactivities toward an activated carbonyl compound (hexachloroacetone) were investigated.The reaction rates were especially enhanced for the
Macrocyclic Enzyme Model System. Kinetic Activity of Paracyclophane Bearing 1,4-Dihydronicotinamide and 2-Pyridinecarboxylic Acid Moieties as Effected by Zinc Ion
Murakami, Yukito,Aoyama, Yasuhiro,Kikuchi, Jun-ichi
, p. 2898 - 2901 (2007/10/02)
As regards the effect of zinc(II) ion on the reduction of hexachloroacetone, the kinetic activity of a paracyclophane (PCP) bearing 1,4-dihydronicotinamide (HNA) and 2-pyridinecarboxylic acid (Py) moieties, HNA-PCP-Py, has been investigated as an alcohol dehydrogenase model in reference to that of PCP-HNA in the light of their metal-coordination behavior.The reduction ability of PCP-HNA was significantly lowered as it underwent complex formation with zinc.On the other hand, HNA-PCP-Py showed an apparent rate maximum in a relatively lower concentration range of ZnCl2.The kinetic behavior was analyzed on the basis of the formation of two kinds of zinc complexes of HNA-PCP-Py: the 1:1 complex , in which both Py and HNA moieties are simultaneously coordinated to the same zinc ion, showed a decreased reactivity relative to metal-free HNA-PCP-Py; while the 2:1 complex (HNA-PCP-Py-ZnII-Py-PCP-HNA), in which HNA is free from metal-coordination, exercised a much enhanced activity, 7 times as reactive as metal-free HNA-PCP-Py.A plausible reaction mechanism for the enhanced reactivity has been discussed.
OXIDATION OF TERTIARY AMINES BY HEXACHLOROACETONE
Talley, John J.
, p. 823 - 826 (2007/10/02)
Triethylamine and ethyldiisopropylamine are oxidized by hexachloroacetone.The vinyldialkylamines are acylated by hexachloroacetone, a discussion of the mechanism is presented.