Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (6): 666-670.DOI: 10.11944/j.issn.1000-0518.2015.06.140331

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Catalyzed Oxidation of Alcohols by 2,2,6,6-Tetramethyl-1-iperidinyloxy with Sodium Bromate and Ferric Chloride as Accelorators

CHU Chaosena, b, *, WANG Xiaolia, HU Yutaoa, YAN Xiumeic, WANG Zhengc   

  1. aLianyungang TCM Branch of Jiangsu Union Technical Institute
    bLianyungang Common Technological Center for Drug Research and Development
    cJiangsu Deyuan Pharmaceutical Co.,Ltd.,Lianyungang,Jiangsu 222047,China
  • Received:2014-09-24 Accepted:2014-12-31 Published:2015-06-10 Online:2015-06-10
  • Contact: Chaosen CHU
  • Supported by:
    Supported by Qinglan Project of Jiangsu Province (2014), Lianyungang Common Technological Center for Druug Research and Development (2013-2015), High Vels of Demonstration Bases Construction Project in Jiangsu Province (2013-2014)

Abstract:

A 2,2,6,6-tetramethyl-1-piperidinyloxy catalytic system with sodium bromate and ferric chloride as accelorators(NaBrO3-FeCl3-TEMPO) was developed for efficient oxidation of alcohols. Taking example for benzyl alcohol, the molar ratios of TEMPO, NaBrO3, H2SO4, FeCl3·6H2O relative to the substrate are optimized at 2%, 35%, 3.7% and 2%, respectively. Aromatic alcohol, aliphatic alcohol and heterocyclic alcohol can be effectively oxidized to the corresponding carbonyl compounds with high yields up to 99% and selectivity up to 99% at room temperature even under anaerobic conditions.

 

Key words: tetramethyl-piperidinyloxy, sodium bromate, alcohol, oxidation

CLC Number: