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    STUDIA CHEMIA - Issue no. 1-2 / 2001  
         
  Article:   THE SYNTHESIS OF ALLYLIC SPIRODIOLS USING ORGANOCERIUM REAGENTS.

Authors:  DOINA SÂRBU, VALERIU SUNEL, MARCEL POPA, CRISTINA BĂSU.
 
       
         
  Abstract:  The organocerium reagents were successfully used to perform the 1,2-addition reactions to carbonyl groups of the α,β-unsaturated spirodiketones. Thus, using phenylcerium (II) chloride and thienylcerium (II) chloride, we have prepared the allylic diols 1,6-dithienylspiro[4,4]nona-2,7-diene-1,6-diol (3) and 1,6-diphenylspiro[4,4]nona-2,7-diene-1,6-diol (4) in yield 85% and 45% respectively. In addition, we have obtained 6-hydroxy-6-phenylspiro[4,4]nona-2,7-dien-1-one (5) in 25% yield.  
         
     
         
         
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