Chin. J. Org. Chem. ›› 2011, Vol. 31 ›› Issue (9): 1406-1410. Previous Articles     Next Articles

Full Papers

新型N-P配体的合成、表征及其在氢转移反应中的应用

张鹏亮,李小娜,周宏勇,李云庆,王家喜*   

  1. (河北工业大学化工学院 天津 300130)
  • 收稿日期:2010-12-15 修回日期:2011-03-09 发布日期:2011-04-07
  • 通讯作者: 王家喜 E-mail:jwang252004@126.COM

Synthesis, Characterization and Their Application of New N-P Ligands in Hydrogen Transfer Reaction

ZHANG Peng-Liang, LI Xiao-Na, ZHOU Hong-Yong, LI Yun-Qing, WANG Jia-Xi   

  1. (School of Chemical Engineering, Hebei University of Technology, Tianjin 300130)
  • Received:2010-12-15 Revised:2011-03-09 Published:2011-04-07
  • Contact: WANG Jia-Xi E-mail:jwang252004@126.COM

A series of mono and cyclic amines modified by phosphine oxides have been synthesized by Michael addition reaction of 2,3-bis(diphenylphosphinyl)-1,3-butadiene with amine. Then the phosphine oxide was reduced by silane to give amine modified by phosphine. The obtained compounds were characterized by NMR and X-ray diffraction. The activity of catalyst system formed in situ of modified phosphine ligands with Ru(PPh3)3Cl2 in catalytic hydrogen transfer reaction of acetophenone was evaluated. It is found that the activity of catalyst formed by mixture of phosphine oxide and Ru is higher than that of phosphine and Ru. The catalyst of Ru with bis-amino substituted diphosphine oxide ligands has high catalytic activity and its TON is up to 273. While the activity (TON) of Ru complex with ligand 6 which prepared before the catalytic reaction, can be further improved up to 352.

Key words: phosphine oxide, Michael addition, P-N ligand, ruthenium catalyst, hydrogen transfer reaction