Studies on the acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan: the role of bases in promoting the formation of fluorescent S-acyl derivatives through S–N Smiles rearrangement
作者:Daniele Castagnolo、Mafalda Pagano、Martina Bernardini、Maurizio Botta
DOI:10.1016/j.tetlet.2012.07.033
日期:2012.9
The acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan has been investigated. Depending on the use of the base, a competitive Smiles rearrangement occurs during the acylation step leading to the formation of N-acyl and/or fluorescent S-acyl derivatives. The acylating agent also affects the ratio of N/S acylated isomers. (C) 2012 Elsevier Ltd. All rights reserved.