Catalytic 2,3,4-hexatriene formation by terminal alkyne coupling at calcium.

نویسندگان

  • Anthony G M Barrett
  • Mark R Crimmin
  • Michael S Hill
  • Peter B Hitchcock
  • Sarah L Lomas
  • Panayiotis A Procopiou
  • Kogularamanan Suntharalingam
چکیده

Heteroleptic calcium amides effect the catalytic dimerisation of the terminal alkyne CH(3)OCH(2)C[triple bond, length as m-dash]CH to the hexatriene (CH(3)OCH(2))CH[double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]CH(CH(2)OCH(3)) under mild conditions; the reaction is proposed to occur via a dimeric calcium acetylide intermediate and to be promoted by polarisation of the electron density within the alkynide C[triple bond, length as m-dash]C bonds.

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عنوان ژورنال:
  • Chemical communications

دوره 17  شماره 

صفحات  -

تاریخ انتشار 2009