REDUCTION OF PYRIDINE HYDROCHLORIDE AND PYRIDONIUM SALTS BY MEANS OF HYDROGEN AND PLATINUM-OXIDE PLATINUM BLACK. XVIII1

1928 ◽  
Vol 50 (8) ◽  
pp. 2260-2263 ◽  
Author(s):  
T. S. Hamilton ◽  
Roger Adams
Keyword(s):  
Platinum Oxide ◽  
Platinum Black ◽  
Pyridine Hydrochloride

Potential antidepressants: Synthesis of two 4-(aminoalkoxy)dibenzo[b,e]thiepin-11(6H)-ones

1989 ◽  
Vol 54 (1) ◽  
pp. 225-228 ◽  
Author(s):  
Irena Červená ◽  
Jiří Holubek ◽  
Emil Svátek ◽  
Jan Metyš ◽  
Martin Valchář ◽  
...  
Keyword(s):  
Sodium Salt ◽  
Anticonvulsant Effect ◽  
Rat Hypothalamus ◽  
Pyridine Hydrochloride ◽  
Antihypoxic Effect

Heating of 4-methoxydibenzo[b,e]thiepin-11(6H)-one with pyridine hydrochloride to 225 to 235 °C effected demethylation and gave IV. Its sodium salt reacted with 3-dimethylaminopropyl chloride in ethanol and afforded the 4-(3-dimethylaminopropoxy) compound II. The isomeric ether III was prepared via the 4-(4-bromobutoxy) compound V. Hydrochloride of II (VÚFB-17 033) inhibited mildly the binding of [3H]desipramine in rat hypothalamus, had antireserpine activity in rats, mild anticonvulsant effect, and antihypoxic effect in the test of nitrogen anoxia in mice.

Investigation of platinum oxide-titanium films by the method of X-ray photoelectron spectroscopy

1997 ◽  
Vol 64 (4) ◽  
pp. 553-556
Author(s):  
D. V. Malevich ◽  
V. B. Drozdovich ◽  
I. M. Zharskii
Keyword(s):  
Photoelectron Spectroscopy ◽  
Platinum Oxide ◽  
X Ray

Catalytic deuterium exchange reactions with organics. XXIV. Electron spin resonance studies of adsorption on platinum oxide

1966 ◽  
Vol 19 (4) ◽  
pp. 529 ◽  
Author(s):  
IT Ernst ◽  
JL Garnett ◽  
WA Sollich-Baumgartner
Keyword(s):  
Transition Metal Oxides ◽  
Hydrogen Exchange ◽  
Platinum Oxide ◽  
Active Species ◽  
Paramagnetic Species ◽  
Charge Transfer Complexes ◽  
Severe Reaction ◽  
Exchange Reactions ◽  
Spin Resonance ◽  
Solid Liquid

The formation of paramagnetic species on catalyst surfaces at room temperature through the interaction of polynuclear aromatics in solid, liquid, or solute form with hydrated platinum oxide (PtO2,2H2O) is reported. The results are attributed to the formation of charge-transfer complexes, where the transferred electrons couple weakly, forming essentially a "diradicaloid" complex with a low-lying, thermally populated, triplet state. The effect of solvent, particle size, oxygen, water of crystallization, and temperature on the generation and stability of these e.s.r. active species has been investigated. The possible importance of these paramagnetic species in catalytic self-activation and hydrogen exchange reactions has been discussed. The following Group VIII transition metal oxides gave no e.s.r. spectra under relatively severe reaction conditions such as 1 hr at 120�: PdO; Ru02,2H20; RuO2; Rh2O3; IrO2,2H2O; ReO2; and NiO.

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