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  • Organic Chemistry  (1)
  • phosphorus lone pair influence  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    On the Oxidation of (β-Stannylvinyl)phosphines: Chemical and spectroscopic effects (1991)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 333 (1991), S. 255-259 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Both E- and Z-(β-stannylvinyl)phosphines are readily converted to the corresponding phosphine oxides by KMnO4 in acetone. However, the less reactive oxidising agents MnO2 and O2 react selectively with only the E isomers. N.m.r. studies indicate that this may be due to interactions between the phosphorus lone pair and the triorganostannyl moiety in the Z-isomer, which make the latter less susceptible to attack. N.m.r. parameters for the phosphines and their oxides are compared.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19913330209
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of the phosphorus lone pair on coupling constants in vinylphosphines (1991)
    Chichester : Wiley-Blackwell
    Organic Magnetic Resonance 29 (1991), S. 78-82 
    Details
    ISSN: 0749-1581
    Keywords: NMR ; vinylphosphines ; coupling constants ; phosphorus lone pair influence ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Multinuclear NMR data are presented and discussed for a variety of vinylphosphines in which the vinyl group bears one, two or three substituents; these include organic and trimethylstannyl residues. The orientation of the phosphorus lone pair can be determined from two-bond phosphorus-carbon coupling constant values. The magnitudes of the 3J(PC=CSn), 4J(PC=CSnC) and 5J(PC=CSnCH) coupling constants are clearly determined by a throughspace interaction when P and C are in a cis configuration.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/mrc.1260290115
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    Paper (German National Licenses)
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