title: Base-Promoted/Gold-Catalyzed Intramolecular Highly Selective and Controllable Detosylative Cyclization.
abstract: A highly selective, controllable and synthetically useful base-promoted intramolecular detosylative cyclization of bis-N-tosylhydrazones has been achieved, affording N-containing heterocycles and cyclic olefins under transition-metal-free or gold-catalyzed procedures, respectively. Moreover, an effective and practical metal-free or gold-catalyzed approach to synthesize polycyclic aromatic compounds is also reported.
authors.affiliation: School of Pharmaceutical Engineering & Life Science and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, 1 Gehu Road, Changzhou 213164 (China), Fax: (+86) 519-86334598.
authors.forename: Chenghao
authors.initials: C
authors.lastname: Zhu
authors.affiliation: School of Pharmaceutical Engineering & Life Science and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, 1 Gehu Road, Changzhou 213164 (China), Fax: (+86) 519-86334598.
authors.forename: Lin
authors.initials: L
authors.lastname: Qiu
authors.affiliation: School of Pharmaceutical Engineering & Life Science and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, 1 Gehu Road, Changzhou 213164 (China), Fax: (+86) 519-86334598.
authors.forename: Guangyang
authors.initials: G
authors.lastname: Xu
authors.affiliation: School of Pharmaceutical Engineering & Life Science and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, 1 Gehu Road, Changzhou 213164 (China), Fax: (+86) 519-86334598.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Pharmaceutical Engineering & Life Science and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, 1 Gehu Road, Changzhou 213164 (China), Fax: (+86) 519-86334598. jtsun08@gmail.com, jtsun@cczu.edu.cn.
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Sun
keywords: cross-coupling; cyclization; gold; hydrazones; olefination