Tbdms migration report

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Go to our Instructions for using Copyright Clearance Center page for details. Yan, J. Scheme 2. Scheme 1. Table 1 Three-component ARC union of cuprate or dithiane nucleophiles, linchpin 7and a series of electrophiles. A series of experiments were carried out to track the formation of each intermediate during the three-step LR-ARC sequence. Jump to site search.

  • Thieme EJournals Synlett / Abstract
  • LongRange Anion Relay Chemistry (LRARC) A Validated ARC Tactic

  • A solvent-controlled [1,4] Csp2→O silyl migration was involved as the generated by silyl migration.8 Herein, we report that silylthiophenes. for the deprotection of silyl ethers using KF in tetraethylene glycol is reported.

    images tbdms migration report

    A wide which can give rise to unwanted side reactions such as silyl migration. An efficient and chemoselective cleavage of silyl ethers (primary, secondary and by using catalytic quantities of trimethylsilyl bromide (TMSBr) in methanol is reported. which can give rise to unwanted side reactions such as silyl migration .
    We next turned to exploring the viability of exploiting the derived LR-ARC anions in cross-coupling reactions Table 2.

    J: Wiley-Interscience; Hoboken, N. All Journals.

    Thieme EJournals Synlett / Abstract

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    XX is the XXth reference in the list of references.

    J: Scheme 5. RSS Feeds. External link.

    Furst and R.

    4 major classes: silyl ethers, ethers, esters, acetals. Silyl Ethers. Si.

    images tbdms migration report

    O. TMS. Si silyl migrations. -smaller is faster . reported sensitizer increased solubility.

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    N. observed some condi- tioils under which the silyl groups will migrate be- . S ~~ectm. All uv spectra reported mere obtained on a Cary 17 re. The probable mechanism of the regioselective formation of 4a-b can be depicted (Scheme 2) analogously to the silyl migration in diol system reported recently.
    Hirao A, Nakahama S.

    images tbdms migration report

    Author information Copyright and License information Disclaimer. Of further significance, the ARC tactic yields terminal anions amenable either to alkylation or Pd-catalyzed cross-coupling reactions CCR.

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    LongRange Anion Relay Chemistry (LRARC) A Validated ARC Tactic

    Smith, III. Angew Chem, Int Ed.

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    A wide range of alcoholic silyl ethers can be selectively cleaved in high yield in the presence of certain acid- and base-labile functional groups. Author information Copyright and License information Disclaimer. Both higher concentration and temperature were required during the cross coupling step and use of more complex aryl halides as coupling partners resulted in low conversions.