Efficient Synthesis of Isothiocyanates Based on the Tandem Staudinger/aza-Wittig Reactions and Mechanistic Consideration of the Tandem Reactions

Abstract

The tandem and stepwise Staudinger/aza-Wittig reactions of several azides were examined in detail. The tandem reaction method (Method I) exhibited superior results in the yield of the corresponding isothiocyanates bearing an electron-withdrawing group than the conventional stepwise method (Method II) which involves the sequential treatment of the azides with triphenylphosphine and then carbondisulfide. The mechanistic consideration for both reaction methods was proposed on the basis of the ^1H-NMR analyses.

Journal

Chemical & pharmaceutical bulletin   [List of Volumes]

Chemical & pharmaceutical bulletin 54(11), 1616-1619, 2006-11-01  [Table of Contents]

The Pharmaceutical Society of Japan

References:  27

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Cited by:  2

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Codes

  • NII Article ID (NAID) :
    10018306344
  • NII NACSIS-CAT ID (NCID) :
    AA00602100
  • Text Lang :
    ENG
  • Article Type :
    Journal Article
  • ISSN :
    00092363
  • NDL Article ID :
    8516752
  • NDL Source Classification :
    ZS51(科学技術--薬学) // ZP1(科学技術--化学・化学工業)
  • NDL Call No. :
    Z53-D167
  • DOI :
    10.1248/cpb.54.1616
  • Databases :
    CJP  CJPref  NDL  NII-ELS  J-STAGE