Silver triflate catalyzed tandem heterocyclization/alkynylation of 1-((2-tosylamino)aryl)but-2-yne-1,4-diols to 2-alkynyl indoles

• Main Authors: Mothe, Srinivasa Reddy, Kothandaraman, Prasath, Lauw, Sherman Jun Liang, Chin, Samuel Ming Wei, Chan, Philip Wai Hong
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/99426; http://hdl.handle.net/10220/12940
• Institution: Nanyang Technological University

Don't cross me! 2-Alkynyl indoles were prepared efficiently by the AgOTf-catalyzed tandem heterocyclization/alkynylation of 1-(2-tosylamino)aryl)but-2-yne-1,4-diols under mild conditions (see scheme). The attractiveness of this approach lies in the fact that both the indole ring and alkyne side...