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African Languages: An Introduction
List of maps Notes on contributors 1. Introduction Bernd Heine and Derek Nurse 2. Niger-Congo Kay Williamson and Roger Blench 3. Nilo-Saharan Lionel M. Bender 4. Afroasiatic Richard J. Hayward 5.Expand
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Magnitudes of Electron-Withdrawing Effects of the Trifluoromethyl Ligand in Organometallic Complexes of Copper and Nickel
A variety of nickel and copper complexes bearing the trifluoromethyl ligand have been prepared in order to quantify by electrochemical methods the redox potentials relative to their chloro and methylExpand
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Approach to the synthesis of cladiell-11-ene-3,6,7-triol.
[reaction: see text] The synthesis of an advanced intermediate in the synthesis of the title compound has been achieved. Key steps include an Ireland-Claisen rearrangement to install the C7 tertiaryExpand
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An Ireland-Claisen approach to lignans: synthesis of the putative structure of 5-epi-eupomatilone-6.
A novel Ireland-Claisen approach to the putative structure of eupomatilone-6 is described. The rearrangement established the C3 and C4 stereocenters and concomitantly generated a vinyl epoxide. TheExpand
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Measurements of the Adsorption Kinetics of a Cationic Surfactant in a Liquid Jet by Ellipsometry
A new technique for the study of the kinetics of adsorption of surfactants at the air−water interface on the 1−20 ms time scale is described. Ellipsometric measurements were performed directly on theExpand
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Synthesis of the C21-C34 fragment of antascomicin B.
The C21-C34 fragment of the potent FKBP12-binding macrolide antascomicin B was prepared using Ireland-Claisen and allylic diazene rearrangements to establish the C26/C27 and the C23 stereocenters,Expand
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Synthesis of 4-benzyl-3-phenylbutenolide natural products
The first total synthesis of eutypoid A and a new synthesis of racemic microperfuranone and gymnoascolide A have been achieved. The key steps in our synthetic strategy involve a Suzuki couplingExpand
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Improving Translational Accuracy between Dash–Wedge Diagrams and Newman Projections
The use of structural representations to convey spatial and chemical information is an integral part of organic chemistry. As a result, students must acquire skills to interpret and translate betweenExpand