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A novel, one-pot, efficient synthesis of 2-aroyl-1,4-diaryl-7,9-dimethyl-7,9-diazaspiro[4.5]deca-1,3-diene-6,8,1 0-triones.

  作者 Adib, Mehdi;Sayahi, Mohammad Hosein;Ziyadi, Hakimeh;Zhu, Long-Guan;Bijanzadeh, Hamid Reza;  
  选自 期刊  Synthesis;  卷期  2008年-20;  页码  3289-3294  
  关联知识点  
 

[摘要]A novel and efficient synthesis of 2-aroyl-1,4-diaryl-7,9-dimethyl-7,9-diazaspiro[4.5]deca-1,3-diene-6,8,1 0-triones is described. The reactive 1:1 zwitterionic intermediate, formed by the addn. of PPh3 to diaroylacetylenes, was trapped by a Knoevenagel condensation product prepd. in situ by reaction of N,N-dimethylbarbiturate and arom. aldehydes, to afford the title compds. in excellent yields under mild reaction conditions.

 
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