Heating N-(2-methoxyphenyl)benzenecarbothioamides in refluxing nitrobenzene for 24 hours gives the corresponding benzothiazoles with intramolecular ipso substitution of the orthomethoxy substituent. The thermal cyclization of various other N-arylthiobenzamides is also explored.
Synthesis of Some Novel Benzobisthiazoles
作者:Yvette A. Jackson、Oscene V. Barrett、Nadale K. Downer-Riley
DOI:10.3987/com-10-11943
日期:——
The synthesis of angular and linear benzobisthiazoles pia reaction of o-methoxythiobenzanilides with AlBN and basic ferricyanide is described.