Now showing items 11-20 of 67
Synthesis of high-affinity, hydrophobic monosaccharide derivatives and study of their interaction with concanavalin A, the pea, the lentil, and fava bean lectins
(Elsevier, 1992-12)
Concanavalin A (Con A) and agglutinins from the pea (PSA), lentil (LCH), and fava bean (VFA) constitute a group of -mannose/-glucose binding legume lectins. In addition to their sugar binding specificity, these lectins ...
Some P---H bond substitution derivatives and fluxionality of Cp2Mo2([mu]-H)([mu]-PHPh)(CO)4
(Elsevier, 1992-11-10)
Reaction of PH2Ph with Cp2Mo2(CO)4 (Mo[triple bond]Mo) results in sequential formation of Cp2Mo2(CO)4(PH2Ph)2 and fluxional Cp2Mo2([mu]-H)([mu]-PHPh)(CO)4. Proton abstraction from Cp2Mo2([mu]-H)([mu]-PHPh)(CO)4 affords ...
Sulfided heterogeneous, bimetallic Ru/Mo catalysts derived from mixtures of Ru 3 (CO) 12 (or RuCl 3 ) and a molybdenum heteropolyanion: The reactions of ethanol with tetrahydroquinoline
(John Wiley & Sons Ltd., 1992-09)
Efforts have been made to develop Ru/Mo bimetallic catalyst systems for hydrodenitrogenation (HDN) of tetrahydroquinoline (THQ). In the course of these studies, it was discovered that in ethanol, under hydrogen and in the ...
Preparation of highly functionalized 3,4-disubstituted cyclobutene-1,2-diones using functionalized zinc-copper organometallics
(Elsevier, 1992)
The selective substitution reactions of the zinc-copper reagents with 3,4-dichlorocyclobutene-1,2-dione 2 allows to prepare a variety of new functionalized symmetrical and mixed 2,4-disubstituted cyclobutene-1,2-diones of ...
cis-2-Tri-n-butylstannylvinyl cuprates: a new synthon for the cis-1,2-ethene dianion
(Elsevier, 1992-01-01)
Conjugate additions of lower order and higher order cyano cuprates containing the cis-2-tri-n-butylstannylvinyl group to cycloalkenones have been studied. The higher order cuprates were more reactive towards hindered enones ...
Decreased formation of inositol trisphosphate in Madin-Darby canine kidney cells under conditions of [beta]-glucosidase inhibition
(Elsevier, 1992-02-01)
Recent work has demonstrated the enhancement of hormone-stimulated inositol trisphosphate formation in renal epithelial cells under conditions of glucosylceramide depletion. The role of glucosylceramide metabolism was ...
Thermodynamics of ammonium halopallidates I. Heat capacity and thermodynamic properties of (NH4)2PdCl6 at temperatures from 6 K to 350 K
(Elsevier, 1992-09)
The heat capacity of ammonium hexachloropallidate (NH4)2PdCl6 was measured at temperatures from 6 K to 350 K by adiabatic calorimetry. The heat-capacity curve is smooth and without anomalies. It rises rapidly from T0 to T ...
Vibrational spectroscopic studies of -alternating valine peptides
(Elsevier, 1992-04-24)
Raman and infrared spectra of Boc-(Val--Val)n-OMe [(-Val)n], with n = 4, 6 and 8, were obtained in crystalline and solution states. Based on predictions from normal-mode calculations of a number of relevant single- and ...
Synthesis and characterization of molybdenum nitride hydrodenitrogenation catalysts
(Elsevier, 1992-06-30)
Details concerning the relationships between the structural, chemical and catalytic properties of Mo nitrides have been elucidated. A series of Mo nitride catalysts were prepared by the temperature programmed reaction of ...
Normal-mode analysis of infrared and Raman spectra of poly(vinyl fluoride)
(Elsevier, 1992-03-02)
Infrared and Raman spectra of samples of poly(vinyl fluoride) (PVF) have been recorded. The vibrational spectra have been analyzed by means of normal-mode calculations. A force field was derived by using 2-fluorobutane as ...