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Synlett 2016; 27(04): 493-497
DOI: 10.1055/s-0035-1560961
DOI: 10.1055/s-0035-1560961
synpacts
Recent Progress in the Metal-Free or Nonnoble-Metal-Catalyzed Oxidation of Alkynes by Using Pyridine N-Oxides as External Oxidants
Weitere Informationen
Publikationsverlauf
Received: 16. September 2015
Accepted after revision: 13. Oktober 2015
Publikationsdatum:
19. November 2015 (online)
![](https://www.thieme-connect.de/media/synlett/201604/lookinside/thumbnails/st-2015-p0737-sp_10-1055_s-0035-1560961-1.jpg)
Abstract
Catalytic oxidation of alkynes by using pyridine N-oxides as external oxidants has proven to be a powerful tool in organic synthesis, allowing the assembly of functionalized carbocycles and heterocycles in a remarkably efficient manner. Recent progress in this area is reviewed with emphasis on metal-free or nonnoble-metal-catalyzed oxidative cyclizations.
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For reviews on intramolecular oxidations of alkynes, see:
For a review on intermolecular oxidation of alkynes, see:
For recent selected examples, see:
For selected reviews on gold carbene chemistry, see:
For relevant Rh-catalyzed intermolecular oxidations of alkynes, see:
For a relevant Pd-catalyzed intermolecular oxidation of alkynes, see:
For Cu(I)-catalyzed oxidative cyclizations of alkynyl oxiranes and oxetanes by an allenyloxypyridinium intermediate pathway, see:
For our recent study on the gold-catalyzed tandem reactions based on ynamides, see: