Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (4): 669.doi: 10.7503/cjcu20150799

• Organic Chemistry • Previous Articles     Next Articles

Preparation and Suzuki Reaction Performance of Pectin-supported Palladium Catalyst

ZHOU Wenjun, ZHOU Yu, ZHANG Xiazhong*(), ZENG Bin   

  1. College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang 641112, China
  • Received:2015-10-19 Online:2016-04-10 Published:2016-03-04
  • Contact: ZHANG Xiazhong E-mail:zhangxiazhong@163.com
  • Supported by:
    † Supported by the Sichuan Province Education Office Fostering Projects, China(No.12ZZ012), the Youth Found of Sichuan Province Education Office, China(Nos.12ZB074, 13ZB0002) and the Startup Foundation of Ph.D.Scientific Research of Neijiang Normal University, China(No.2012B05)

Abstract:

To discover new heterogeneous palladium catalyst in organic synthesis, pectin, which was extracted form citrus peel, was used as supporter for the preparation of pectin-supported palladium catalyst. The pectin-supported palladium catalyst was applied to Suzuki cross-coupling reaction between sodium tetraphenylborate and aryl bromides. The results revealed that all four aryl groups of sodium tetraryylborate could be efficiently utilized in the Suzuki cross-coupling reactions in an atom-efficient way in the presence of Et3N as base in PEG 400/H2O at 110 ℃ in open air, providing excellent yields of the corresponding functionalized biaryls within 1 h. The present protocol has the advantages highly efficient, high yield, mild condition, short reaction time, as well as the catalyst can be recycled and reused.

Key words: Pectin supported-Pd, Suzuki reaction, Sodium tetraphenylborate, Aryl bromide

CLC Number: 

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