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Titanocene(III) Chloride Mediated Radical Induced Allylation of Aldimines: Formal Synthesis of C-Linked 4 '-Deoxy Aza-disaccharide

  作者 SAHA SUMIT; ROY SUBHAS CHANDRA  
  选自 期刊  Journal of Organic Chemistry;  卷期  2011年76-17;  页码  7229-7234  
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[摘要]Titanocene(III) chloride (Cp(2)TiCl) mediated radical induced allylation of aldimines for the preparation of homoallyl amines is described. The radical was from the allyl bromide using Cp(2)TiCl as the radical source. Formal synthesis of C(4) C(5')-linked 4'-deoxy aza-disaccharide is demonstrated and a study toward the bicyclic skeleton of alkaloids was also accomplished. The radical initiator Cp(2)TiCl was prepared in situ from commercially available titanocene dichloride (Cp(2)TiCl(2)) and Zn dust in THF under argon.

 
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