An Alternative Method for Generating Arynes from ortho-Silylaryl Triflates: Activation by Cesium Carbonate in the Presence of a Crown EtherReportar como inadecuado




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Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan





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Academic Editors: Daesung Lee and Hiroto Yoshida

Abstract An alternative method for generating arynes from ortho-silylaryl triflates using cesium carbonate and 18-crown-6 is reported. The method was efficiently applied to a variety of reactions between several arynes and arynophiles. We also demonstrated that the efficiency of aryne generation is significantly affected by the alkali metal countercation of the carbonate. View Full-Text

Keywords: aryne; ortho-silylaryl triflate; cesium carbonate; crown ether aryne; ortho-silylaryl triflate; cesium carbonate; crown ether





Autor: Suguru Yoshida, Yuki Hazama, Yuto Sumida, Takahisa Yano and Takamitsu Hosoya *

Fuente: http://mdpi.com/



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