Synlett 2011(20): 3031-3035  
DOI: 10.1055/s-0031-1289907
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

Metal-Free Relay Oxidation: Valuable Synthesis of Acylsilane and Ketones under Aerobic Oxidation

Xing-Feng Baia, Guang Gaoa, Zhan-Jiang Zhenga, Fei Lia, Guo-Qiao Laia, Kezhi Jianga, Fuwei Lib, Li-Wen Xu*a,b
a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. of China
Fax: +86(571)28865135; e-Mail: liwenxu@hznu.edu.cn; e-Mail: licpxulw@yahoo.com;
b State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. of China
Further Information

Publication History

Received 18 October 2011
Publication Date:
23 November 2011 (online)

Abstract

In this letter, an example of interesting metal-free relay air oxidation of α-hydroxysilanes, promoted by the hydroperoxidated carbonyl compounds derived from the Michael reaction of 5,5-dimethylcyclohexane-1,3-dione and chalcone, is reported. A series of aromatic acylsilanes with TBDPS were obtained in promising isolated yields. In addition, as an extension of the relay oxidation under aerobic conditions, this catalyst-free relay oxidation induced by diketone can be applied to the oxidation of general aromatic alcohols (up to 75% yield).