Indium(III)-Catalyzed Transformations of Alkynes: Recent Advances in Carbo- and Heterocyclization ReactionsFinancial support from the Swedish Research Council (2012-2981) is gratefully acknowledged.
Received: 29 June 2017
Accepted after revision: 27 July 2017
30 August 2017 (eFirst)
The use of a well-chosen catalyst is instrumental for the development of more efficient, economical and environmentally friendly reactions. In recent decades, indium-based catalysts have proven to be competitive and useful alternatives to transition-metal catalysts such as silver and gold. In this short review, we present some of the recent advances in indium(III)-catalyzed transformations of alkynes, with a focus on cyclization reactions.
2 Terminal Alkynes as Nucleophiles
3 Nucleophilic Additions to Alkynes
4 Carbo- and Heterocyclization Reactions
4.2 Oxygen-Based Heterocycles
4.3 Nitrogen-Based Heterocycles
4.4 Sulfur-Based Heterocycles