Journal ArticleDOI
Rapid chromatographic technique for preparative separations with moderate resolution
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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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α,α,α′,α′‐Tetraaryl‐1,3‐dioxolane‐4,5‐dimethanols (TADDOLs) for Resolutions of Alcohols and as Chiral Solvating Agents in NMR Spectroscopy
TL;DR: In this article, the use of α,α,α′, α′ -tetraaryl-1,3-dioxolane-4,5-dimethanols ( = TADDOLs;1) as chiral NMR shift reagents (1H, 13C, 19F) is described.
Journal ArticleDOI
Design, Synthesis, and Evaluation of Matrix Metalloprotease Inhibitors Bearing Cyclopropane-Derived Peptidomimetics as P1‘ and P2‘ Replacements
TL;DR: Trisubstituted cyclopropane-derived peptide mimics related to 3 may serve as useful rigid dipeptide replacements in some biologically active pseudopeptides.
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Total Syntheses of (-)-Papuamine and (-)-Haliclonadiamine.
TL;DR: The pentacyclic marine alkaloids (-)-papuamine and (-)-haliclonadiamine have been prepared by total synthesis and the NMR spectra were identical to those of authentic samples of the natural alkaloid.
Journal ArticleDOI
Accessibility of Responsive End-Caps in Films Composed of Stimuli-Responsive, Depolymerizable Poly(phthalaldehydes)
TL;DR: In this article, a microscale-pump made from films of depolymerizable poly(phthalaldehyde) serves as a test system for evaluating the location of end-caps in the films.
Journal ArticleDOI
Synthesis of Five-, Six-, and Seven-Membered Heterocycles by Intramolecular Ring Opening Reactions of 3-Oxetanol Derivatives
TL;DR: In this paper, anionic heteroatom nucleophiles (O, N, S) were attached to the carbon atom C-3 of the trimethylsilyl-protected oxetanol via an alkyl chain.