Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Rudolph E. K. Winter"'
Publikováno v:
Supramolecular Chemistry. 22:73-80
Sodium, potassium, rubidium, caesium, ammonium and tetramethylammonium tetraphenylborates were studied by both positive and negative ion electrospray mass spectrometry. An affinity order of Cs+ > Rb+ > K+ ∼ Na+ was obtained. The results obtained we
Autor:
Rudolph E. K. Winter, Riccardo Ferdani, Lei You, George W. Gokel, Ruiqiong Li, Joseph P. Kramer
Publikováno v:
Chemistry - A European Journal. 14:382-396
Six amphiphilic heptapeptides with the structure (C 18 H 37 ) 2 NCO-CH 2 OCH 2 CO-(Gly)3-Pro-(Gly) n -(Glx)-(Gly) m -O(CH 2 ) 6 CH 3 , in which Glx represents glutamic acid or its benzyl ester and n+m=2, have been studied. In addition, the glutamate
Autor:
Mark R. Ellersieck, Elaine A. Backus, Christopher M. Ranger, Rudolph E. K. Winter, David W. Johnson, George E. Rottinghaus
Publikováno v:
Environmental Entomology. 34:271-280
Varieties of glandular-haired alfalfa, Medicago sativa L., with resistance to the potato leafhopper, Empoasca fabae (Harris), have been commercially released. To assess the role of volatile organic compounds in leafhopper resistance, stem and leaf vo
Publikováno v:
Inorganica Chimica Acta. 358:1545-1556
Reactions between a series bidentate phosphines, with the general formula PPh 2 (CH 2 ) n PPh 2 , and the air stable hexaborane(10) analogue [2,2,2-(PPh 3 ) 2 (CO)- nido -2-OsB 5 H 9 ] ( 1 ), afford species of the type [{(PPh 3 ) 2 (CO)OsB 4 H 7 }-3-
Autor:
George E. Rottinghaus, Elaine A. Backus, Rudolph E. K. Winter, David W. Johnson, Christopher M. Ranger, Mark R. Ellersieck
Publikováno v:
Journal of Chemical Ecology. 30:1969-1983
Medicago sativa cv. G98A is highly resistant to the potato leafhopper, Empoasca fabae. Glandular trichome extracts from G98A were fractionated using flash chromatography and tested for settling deterrency against the potato leafhopper. A fraction of
Autor:
Lawrence Barton, Clara Vinas, Raikko Kivekäs, Nigam P. Rath, Jonathan Bould, Rudolph E. K. Winter, Anna Laromaine, Francesc Teixidor, Reijo Sillanpää
Publikováno v:
Organometallics. 23:3335-3342
[NHMe3][7-Me-μ-(9,10-HMeC)-nido-7-CB10H10] (1) reacts with [PdCl2(PPh3)2] in refluxing ethanol solutions to afford four compounds which are the result of PPh3 addition. Three of the products are structural isomers, viz. [5-PPh3-7-Me-μ-(9,10-HMeC)-n
Publikováno v:
Journal of Organometallic Chemistry. 688:82-91
In the reaction between the osmahexaborane nido -(PPh 3 ) 2 (CO)OsB 5 H 9 ( 1 ) and the bidentate phosphines, [1,2-(PPh 2 ) 2 (CH 2 ) 2 ] and [1,3-(PPh 2 ) 2 (CH 2 ) 3 ] (abbreviated as dppe and dppp, respectively), two products are observed in each
Publikováno v:
Natural Product Letters. 10:105-109
The photosensitized oxygenation of guaiol (I) results primarily in allylic hydroperoxides; cyclopentenyl compounds predominate with an apparent preference for reaction at the α-face. Ozonolysis of hydroperoxide IVb furnished the hydroperoxy hemipero
Autor:
Michael G. S. Londesborough, Rudolph E. K. Winter, Ivana Císařová, John D. Kennedy, Kamil Lang, Pavel Kubát, Jonathan Bould, Ramón Macías
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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The bimetalladodecaborane cluster compound [(PMe2Ph) 4Pt2B10H10] 1, quantitatively reacts with EtNC at room temperature to afford [{(EtNC)(PMe2Ph) 3}(μ-EtNC)Pt2B10H10] 3 in which one molecule of EtNC replaces a terminal PMe2Ph ligand, and a second m
Publikováno v:
Journal of Organometallic Chemistry. 499:113-121
The synthesis of 2,2′-difluoro-6,6′-dichlorobibenzyl, a precursor to dibenzometallepins, has been accomplished from bromination of 2-chloro-6-toluene followed by coupling of the benzyl bromide produced with PhLi. A variety of conditions were stud