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Crystal Structure and Solid State Conformation of 5‐Hydroxy‐8,9‐Dioxo‐8,9‐Seco‐α‐Cholestan‐3β‐yl Acetate
(Comltb van Beheer van het Bulletin V.Z.W., 1993)
The molecular structure of the title compound, which might be a possible intermediate in the synthesis of 5,10:8,9‐diseco‐steroids (=steroklastanes), was determined by X‐ray analysis. Hydrogen bonding between the 5α‐hydroxyl ...
Chaerophyllum coloratum L.: Essential oils of ripe fruits and umbels
(Taylor & Francis, 1995)
Essential oils of ripe fruits and umbels of Chaerophyllum coloraturn L. (Apiaceae) were found by GC and GC/MS to contain very high percentage of (E)-Pfarnesene (79.21% and 68.40% respectively). © 1995 Allured Publishing Corp.
Essential oil of anthemis carpatica
(Taylor & Francis, 1997)
The essential oil obtained from air-dried aerial parts of plant species Anthemis carpatica Willd. (Asteraceae), was analyzed by GC and GC/MS, and about 50 components were identified. The major constituents, α-thujone ...
Guaianolides from Centaurea nicolai: Antifungal activity
(Elsevier, 1999)
A new guaianolide, 3-deacetyl-9-O-acetylsalograviolide A, along with four known closely related lactones, salograviolide A, 9-O- acetylsalograviolide A, kandavanolide and salograviolide B were detected in the aerial parts ...
Sesquiterpene lactones from Centaurea species: C. derventana and C. kosaninii
(Georg Thieme Verlag, 1998)
Oxygen reduction on a duplex stainless steel
(Oxford : Pergamon-Elsevier Science Ltd, 1998)
O-2 reduction on duplex stainless steel was investigated in neutral and alkaline solutions with and without the presence of chloride ions. All polarization curves showed hysteresis with higher reaction rate in positive ...
Structural effects in electrocatalysis. Ethylene glycol oxidation on platinum single-crystal surfaces
(Elsevier, 1991)
The oxidation of ethylene glycol (EG) has been studied on platinum single-crystal surfaces in 0.1 M NaOH. A strong structural dependence of the reaction kinetics was found for all 12 single-crystal orientations investigated. ...
A study of the oxidation of formaldehyde on Au(332) by rotating disc-ring method
(Elsevier, 1990)
The oxidation of formaldehyde on gold has been studied by a rotating disc-ring method. Hydrogen evolved on the disc was possible to detect on the Pt ring electrode. The reaction scheme was proposed, and expressions for the ...
Anodic oxidation of small organic molecules on silver modified glassy carbon electrodes
(Elsevier, 1991)
Small organic molecules (HCOOH, C,H,(OH),, CH,OH, CH,O, etc.) have become more interesting with the possibility of their application in fuel cells. Therefore, the anodic oxidation of such molecules has been studied on a ...
Reduction of carbon dioxide on ruthenium oxide and modified ruthenium oxide electrodes in 0.5 M NaHCO3
(Elsevier, 1997)
Electrochemical reduction of carbon dioxide is still of great interest in the fields of theoretical and applied electrochemistry. Ruthenium is one of the metals with an intermediate hydrogen evolution overpotential which ...