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'Low Valent Titanium' in keywords Facet   Publication Year 1995  [X]
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1Author    Fiirstner, DenisN. Jumbam, Nongyuan ShiRequires cookie*
 Title    Alois  
 Abstract    Low-valent titanium prepared by the reduction of TiCl3 with zinc dust oxidatively adds to a-ketoam ides or a-ketoesters with the formation of the corresponding titanium enediolates. These 1,2-difunctional nucleophiles, which have hardly been used in organic synthesis so far, undergo regioselective intramolecular aldol condensation reactions with various electrophiles such as aldehydes, ketones, nitriles, esters and amides. This methodology allows the synthesis of differently substituted coumarin and 2-quinolone derivatives. 
  Reference    Z. Naturforsch. 50b, 326—332 (1995); received September 13 1994 
  Published    1995 
  Keywords    Low-Valent Titanium, Enediolates, Coumarins, 2-Quinolones, Aldol Condensation 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0326.pdf 
 Identifier    ZNB-1995-50b-0326 
 Volume    50