New pentacyclic ring systems: intramolecular cyclization of o,o′-disubstituted bibenzothiazoles

• DOI: 10.1016/j.tet.2011.02.037
• Publication Date: 2011-02-20T04:12:02Z
• Authors: Livio Racané; Helena Čičak; Zlatko Mihalić; Grace Karminski-Z...; Vesna Tralić-Kule...
• Keywords: Intramolecular reaction

AbstractMethods for the cyclization of isomeric o,o′‐diaminobis(benzothiazoles) (III) and (VIII) are presented.