Now showing items 31-40 of 149
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 ...
Protamine immobilization and heparin adsorption on the protamine-bound cellulose fiber membrane
(Wiley Subscription Services, Inc., A Wiley Company, 1992-02-20)
Immobilization of protamine to the inner lumen of cellulose hollow fibers has been shown useful in preventing both heparin- and protamine-induced complications during an extracorporeal blood circulation procedure. The ...
Irreversible enzyme-shuttle immunoassay
(Wiley Subscription Services, Inc., A Wiley Company, 1992-03-25)
The concept of a competitive enzyme immunoassay that utilizes simultaneously the bound and the free analyte-enzyme conjugate (heterobifunctional conjugate) for signal generation in response to varying analyte concentrations ...
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 ...
Alu-PCR: Characterization of a chromosome 6-specific hybrid mapping panel and cloning of chromosome-specific markers
(Elsevier, 1992-03)
The Alu-polymerase chain reaction (Alu-PCR) was applied to selectively amplify DNA sequences from human chromosome 6 using a single primer (A1) directed to the human Alu consensus sequence. A specific amplification pattern ...
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 ...
Imaging of metabolism and autonomic innervation of the heart by positron emission tomography
(Springer-Verlag, 1992-06)
Positron emission tomography (PET) allows, in combination with multiple radiopharmaceuticals, unique physiological and biochemical tissue characterization. Tracers of blood flow, metabolism and neuronal function have been ...