1964-28-9Relevant academic research and scientific papers
Fused heterocycles from o-acylbenzenethiol derivatives
McKinnon, David M.,Lee, Kingsley R.
, p. 1405 - 1409 (2007/10/02)
The oximes of 2-acylthioanisole derivatives may be conveniently converted into 1,2-benzisothiazoles by acetic anhydride in pyridine. 3-(2-Methylthiophenyl)-1,2-benzisothiazole, prepared by this method, has been further converted into the 1,2-benzisothiazolo-1,2-benzisothiazolium system.The phenylhydrazones of certain 2-acylthioanisoles are also cyclized by polyphosphoric acid to 2-(2-methylthio)phenylindoles, which are further converted into benzothienoindoles by demethylation and oxidation.
