Now showing items 331-340 of 373
Linear and hyperbranched polycarbosilanes with Si-CH 2 -Si bridging groups: A synthetic platform for the construction of novel functional polymeric materials
(John Wiley & Sons, Ltd., 1998-10)
Work carried in the authors laboratory on Si–CH 2 –Si bridged polycarbosilanes is reviewed. In pursuit of high-yield polymeric precursors to silicon carbide, convenient synthetic routes to both linear and hyperbranched ...
Synthesis of 6- or 7-substituted 1,2,3,4-tetrahydroisoquinoline- 3-carboxylic acids
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-03)
A straightforward approach for the synthesis of several new, aryl-substituted derivatives of the conformationally constrained phenylalanine analogue 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (Tic) is described. Tic, ...
Bone Marrow Transplantation Demonstrates That Carbonic Anhydrase II Deficiency Limited to Bone Marrow-Derived Cells Affects Ammonium Chloride Tolerance in Mice
(Elsevier, 1994-02)
Bone marrow transplantation (BMT) in mice was utilized to determine the relative importance of carbonic anhydrase II (CA II) deficiency in blood compared to kidney in the pathogenesis of the ammonium chloride intolerance ...
A new and novel approach towards the synthesis of 3'-deoxy-3'-hydroxymethyl ribofuosides
(Elsevier, 1990)
The synthesis of 1,2,5 tri--benzoyl-3-deoxy-3-[(benzyloxy)methyl]-[alpha],gb-D-ribofuranose () from 1,2 --isopropylidene-[alpha]-D-xylofuranose () has been achieved in an overall yield of 37%. Compound is a properly ...
Thermodynamics of the thallium alkanoates VIII. Heat capacity and derived thermophysical properties of thallium(I) propanoate and pentanoate at temperatures from 6 K to 490 K
(Elsevier, 1994-09)
Heat-capacity measurements by adiabatic calorimetry at temperature T = 5 K to 350 K were supplemented by differential-scanning calorimetry (d.s.c.) into the liquid region on thallium(I) propanoate and pentanoate. Apparent ...
Heat capacity and thermodynamic properties of synthetic heazlewoodite, Ni3S2, and of the high-temperature phase Ni3±xS2
(Elsevier, 1991-01)
The heat capacity of synthetic heazlewoodite (Ni3S2) was measured over the temperature range 5 K to 350 K by equilibrium adiabatic calorimetry and compared with earlier results. High-temperature results on this phase and ...
1,2-Addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones and regiospecific generation of cyclic silyl enol ethers through brook rearrangement of the 1,2-addition products
(Elsevier, 1990)
A highly convenient two-step sequence for the regiospecific synthesis of cyclic silyl enol ethers has been developed involving the 1,2-addition of dimethyl(phenyl)silyllithium to cyclic [alpha],[beta]-unsaturated ketones ...
Preparation and properties of silicon-containing polymer hybrids from 3-methacryloxypropyltrimethoxysilane
(John Wiley & Sons, Ltd., 1998-10)
The preparation of organic–inorganic polymer hybrids consisting of carbon–carbon and siloxane chains was investigated by radical polymerization of 3-methacryloxypropyltrimethoxysilane (MAS) followed by acid-catalyzed ...
Incorporation of alkylthiol chains at C-5 of deoxyuridine
(Elsevier, 1993-08-27)
A series of alkylthiol-tether homologs at C-5 of 2'-deoxyuridine have been synthesized and incorporated into DNA oligomers through solid-phase DNA phosphoramidite synthesis. DNA-ligand disulfide crosslinks have been initially ...
Inhibition of fludarabine metabolism by arabinosylcytosine during therapy
(Springer-Verlag, 1992-05)
The active 5′-triphosphate of arabinosyl-2-fluoroadenine (F-ara-ATP) increases the anabolism of arabinosylcytosine (ara-C), whereas ara-C 5′-triphosphate inhibits the phosphorylation of arabinosyl-2-fluoroadenine (F-ara-A) ...