111021-09-1Relevant articles and documents
A metal-free oxidative esterification of the benzyl C-H bond
Feng, Jie,Liang, Shuai,Chen, Shan-Yong,Zhang, Ji,Fu, Song-Sen,Yu, Xiao-Qi
experimental part, p. 1287 - 1292 (2012/06/15)
An efficient metal-free oxidative esterification of benzyl C-H bonds was developed. Using tetrabutylammonium iodide as catalyst and tert-butyl hydroperoxide as co-oxidant, benzylic substrates could react smoothly with various carboxylic acids to give the esters with good to excellent yields. The method was also suitable for the O-protection of N-Boc amino acids. The reaction mechanism was primarily investigated and a radical process was proposed. Copyright