The Structure of Polymer-Supported Triphenylphosphine Ditriflate: A Potentially Useful Reagent in Organic Synthesis
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Jenkins, Ian D
Loughlin, Wendy A
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Abstract
The structure of a polymer-supported version of the Hendrickson "POP" reagent, prepared by the reaction of polymersupported triphenylphosphine oxide 1 with triflic anhydride, is established as an equilibrium mixture of polymer-supported triphenylphosphine ditriflate 3 (d 79.4 ppm) and polymersupported phosphonium anhydride 4 (d 73.3 ppm). The 31P NMR chemical shift reported previously for 3 is shown to be incorrect.
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Journal of Organic Chemistry
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73
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12
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© 2008 American Chemical Society. Self-archiving of the author-manuscript version is not yet supported by this publisher. The contents of this journal can be freely accessed online via the ACS web page after publication. Use hypertext link above to access the ACS website.
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Medicinal and biomolecular chemistry
Organic chemistry