Journal ArticleDOI
Rapid chromatographic technique for preparative separations with moderate resolution
Abstract:
(11) Potassium ferricyanide has previously been used to convert w'c-1,2-dicarboxylate groups to double bonds. See, for example, L. F. Fieser and M. J. Haddadln, J. Am. Chem. Soc., 86, 2392 (1964). The oxidative dldecarboxylation of 1,2-dlcarboxyllc acids is, of course, a well-known process. See Inter alia (a) C. A. Grob, M. Ohta, and A. Weiss, Helv. Chim. Acta, 41, 1911 (1958); and (b) E. N. Cain, R. Vukov, and S. Masamune, J. Chem. Soc. D, 98 (1969).read more
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Positively Charged Iridium(III) Triazole Derivatives as Blue Emitters for Light-Emitting Electrochemical Cells
TL;DR: In this paper, the influence of substituents on the triazole ligand and the effect of the counterions on the reaction time of light emitting iridium complexes was investigated.
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Quadruplex-Interactive Agents as Telomerase Inhibitors: Synthesis of Porphyrins and Structure−Activity Relationship for the Inhibition of Telomerase
TL;DR: The synthesis and telomerase-inhibiting activity of a wide range of analogues of TMPyP4 are reported, from which rules for a structure-activity relationship (SAR) have been discerned.
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Phytoalexin Accumulation in Arabidopsis thaliana during the Hypersensitive Reaction to Pseudomonas syringae pv syringae
TL;DR: The Arabidopsis phytoalexin was identified as 3-thiazol-2'-yl-indole on the basis of ultraviolet, infrared, mass spectral, (1)H- nuclear magnetic resonance, and (13)C-nuclear magnetic resonance data.
Journal ArticleDOI
Effects of Olefin Substitution on the Ring-Closing Metathesis of Dienes
TL;DR: Dienes with allylic functional groups yielded functionalized cyclic olefins when treated with 1, and those with sterically demanding and/or electron-withdrawing substituents were cyclized successfully with 2, but did not cyclize with 1.
Journal ArticleDOI
Cyclopropanation with Diazomethane and Bis(oxazoline)palladium(II) Complexes.
TL;DR: An intriguing relationship between substitution on the oxazoline ring, particularly the commonly-derivatized 4-position, and catalyst efficiency was discovered and the results are rationalized by either partial or complete bis(oxazoline) decomplexation during the course of the reaction.