Xue-Juan Zhang, Xiao-fei Zhou, Hongping Xiao
Oct 21, 2013
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0
Influential Citations
19
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Journal
RSC Advances
Abstract
We have developed a catalyst-free system for the 3-sulfenylation of free (N–H) indoles using mercaptobenzoic acid under alkaline conditions. The use of this system provides a green, convenient, and efficient method for the synthesis of 3-sulfenylindoles in good yields and with high selectivity. This simple synthesis process was carried out in a green solvent, isopropanol/H2O, under atmospheric and catalyst-free conditions. The procedure is suitable for use with N-unprotected indoles.