98809-71-3Relevant academic research and scientific papers
A Novel Synthesis of Indole Ring System
Hewson, Alan T.,March, Lorraine A.,Nowell, Ian W.,Richardson, Stewart K.
, p. 618 - 619 (1985)
Intramolecular acid catalysed cyclisation of the ketene dithioacetal S-oxide (3) from the o-toluenesulphonamidobenzaldehyde (2) leads to two indole derivatives (5) and (6), the structure (6) being confirmed by X-ray crystallography.
Acid-catalysed Cyclisation of o-Sulphonamido Ketene Dithioacetal S-Oxides: A Novel Synthesis of the Indole Ring System
Hewson, Alan T.,Hughes, Kevin,Richardson, Steward K.,Sharpe, David A.,Wadsworth, Alan H.
, p. 1565 - 1569 (2007/10/02)
Treatment of o-sulphonamido aryl ketene dithioacetal S-oxides with hydrochloric acid in the presence of hydrogen sulphide gives 2-methylthioindoles.
