One-Pot Construction of Aza- or Oxa-Bridged Benzocycloheptanes from Readily Available 2,3-Allenyl Malonates or 2,3-Allenols and <i>o</i>-Iodobenzaldehyde or Imine
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A Pd(OAc)2-catalyzed reaction of 2,3-alkadienyl malonates or 2,3-allenols with o-iodobenzaldehyde or its N-tosyl imine occurred smoothly in MeCN at 80 °C to form the oxa- or aza-bridged benzocycloheptane derivatives with important biological potential. With the optically active 2,3-allenols, the absolute configurations of all the three chiral centers have been conveniently established.
创建时间：
2011-02-04
