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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The Reaction of Seven- and Eight- Membered Cyclic Phosphorochloridites with Polyols
TL;DR: In this article, the synthesis of bridged dibenzo[d,f][1,3,2]dioxaphosphepin and Dioxaphosphocin ring systems is described.
Journal ArticleDOI
Synthesis of Vinyl- and Alkynylcyclopentanetetraols by SmI2/Pd(0)-Promoted Carbohydrate Ring-Contraction
TL;DR: A predominant trans relationship is found between vinyl (or alkynyl) and hydroxyl groups at the two newly created stereogenic centers, with good to excellent levels of stereoselectivity being observed in the formation of homopropargyl cyclopentanol products.
Journal ArticleDOI
Carbocationic Rearrangements of Silphinane Derivatives
TL;DR: In this paper, isocomene and modhephene were derived from a minor competing pathway resulting from 7→1 hydride shift to the silphin-7-yl ion, which partitions between methyl and cyclopentane ring rearrangements.
Journal ArticleDOI
Anomalous mixing of zwitterionic and anionic phospholipids with double-chain cationic amphiphiles in lipid bilayers.
TL;DR: The present results suggest that perturbation of the orientation of the phosphatidylcholine headgroup by cationic amphiphiles, as demonstrated previously by Seelig and co-workers, can significantly affect the thermotropic behavior of phospholipids such as DPPC.
Journal ArticleDOI
Modular Total Syntheses of Lamellarin G Trimethyl Ether and Lamellarin S
TL;DR: The first total synthesis of the pyrrolic building block of lamellarin S was reported in this article, where the Suzuki-Miyaura cross-coupling of compound 8 with boronate ester 9 afforded lactone 10.