Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (11): 1651.

• Articles • Previous Articles     Next Articles

Low-Valent Titanium Induced Reductive Coupling Reactions of Aromatic 1,2-Diketones and a-Hydroxy Ketones

HOU Zi-Jie, LIU Li-Jun, ZHANG Jian-Hua, LI Yu-Lin   

  1. Institute of Organic Chemistry, Lanzhou university, Lanzhou, 730000
  • Received:1993-12-25 Revised:1994-02-25 Online:1994-11-24 Published:1994-11-24

Abstract: Treatment of aromatic 1 , 2-diketones or aromatic a-hydroxy ketones with an activated low-valent titanium reagent, prepared by reduction of TiCl3·1/3AlCl3 with a Zn-Cu reagent, gave an intermolecular coupling reaction leading to the (Z)-1, 2.3.4-tetraaryl-2-butenes. Apossible coupling reaction process was proposed for the aromatic a-hydroxy ketones.

Key words: Low-valent titanium, Aromatic 1,2-diketone, Arornatic a-hydroxy ketone, Coupling

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