Showing papers in "Tetrahedron in 2000"

TL;DR: The Pauson-Khand reaction has been studied extensively in the literature as discussed by the authors, with a focus on cycloaddition precursors for natural product synthesis, such as dicobaltoctacarbonyl and traceless tethers.

TL;DR: In this paper, a variety of chiral phosphoramidites were synthesised and tested in the copper-catalysed enantioselective conjugate addition of diethylzinc to cyclohexenone and chalcone in order to assess the structural features that are important for stereocontrol.

TL;DR: In this paper, a practical method for the synthesis of p-tert-butylthiacalix[4]arene (TC4A), in which the methylene bridges of C4A are replaced by epithio groups, is presented by heating a mixture of ptert butylphenol, elemental sulfur S8, and NaOH as a base catalyst in tetraethylene glycol dimethyl ether.

TL;DR: In this paper, the role of the CH/π interaction in controlling the specific structure of supramolecules was discussed in view of the role in controlling specific structures of the specific compounds.

TL;DR: In this article, eight flavonoid compounds were isolated from the seeds of Ziziphus jujuba mill var. Spinosa, and their structures were elucidated as swertish (1), puerarin (2), 6‴-feruloylspinosin (3), apigenin-6- C -β-d -glucopyranoside (4), spinosin (5), 6

TL;DR: In an attempt to characterize additional structural classes that could serve as lead antituberculosis agents, 48 structurally diverse marine-derived natural and semisynthetic compounds were examined for in vitro activity against Mycobacterium tuberculosis as mentioned in this paper.

TL;DR: Coldspray ionization (CSI) for mass spectrometry (MS) has been developed and applied to characterize labile self-assembling nano-sized metal complexes as discussed by the authors.

TL;DR: The conformational features of the mitotic kinesin Eg5 inhibitor monastrol were investigated by computational (AM1, HF/3-21G∗), X-ray diffraction, and NMR studies as discussed by the authors.

TL;DR: In this paper, a highly regio-and stereoselective method for the synthesis of (Z)-3-aryl(alkyl)idene isoindolin-1-ones through palladium-copper catalysis is described.

TL;DR: In this article, the correlation between the saccharide crystal structure and its gelating ability seems to be a useful tool for finding promising gelators, by analogy to the other types of the hydrogen-bond-based gelators.