Acta Chimica Sinica ›› 2000, Vol. 58 ›› Issue (10): 1177-1185.     Next Articles

Original Articles

过渡金属促进的从三种不同的炔烃高效合成苯衍 生物的策略

席振峰;高桥保   

  1. 北京大学化学学院;日本北海道大学触媒化学研究中心
  • 发布日期:2000-10-15

Strategy for selective one-pot aromatization of three different alkynes by organometallic compounds

Xi Zhenfeng;Gao Qiaobao   

  • Published:2000-10-15

This paper describes how benzene derivatives were formed with high selectivity in one-pot from three different alkynes in excellent yields. Firstly, a novel method for pair-selective coupling of an alkyne with ethylene forming zirconacyclopentenes was developed; then, highly selective cross-coupling of two different alkynes forming zirconacyclopentadienes was achieved; finally, transmetallation of Zr- C bonds to Cu-C bonds in the presence of a third alkyne led to the formation of benzene derivatives of three different alkynes. New evidences were obtained for understanding the reaction mechanism.

Key words: METALLOCENES, ZIRCONIUM COMPLEX, ALKYNE, BENZENE P

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