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Synthesis of Substituted Pyrazoles from Vinylhydrozones via Bromoamination and Hydroamination with 2,2,6,6‐Tetramethylpiperidine‐1‐oxyl and N‐Bromosuccinimide

Synthesis of Substituted Pyrazoles from Vinylhydrozones via Bromoamination and Hydroamination... The CH oxidative amination of (Z)‐1‐allylidene‐2‐arylhydrazines with 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO)/N‐bromosuccinimide (NBS) provides highly substituted pyrazoles with 100 % regioselectivity in moderate to good yields. These protocols are effective at room temperature and offer a route for the construction of the target five membered heterocycles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Asian Journal of Organic Chemistry Wiley

Synthesis of Substituted Pyrazoles from Vinylhydrozones via Bromoamination and Hydroamination with 2,2,6,6‐Tetramethylpiperidine‐1‐oxyl and N‐Bromosuccinimide

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References (83)

Publisher
Wiley
Copyright
Copyright © 2014 Wiley Subscription Services, Inc., A Wiley Company
ISSN
2193-5807
eISSN
2193-5815
DOI
10.1002/ajoc.201300294
Publisher site
See Article on Publisher Site

Abstract

The CH oxidative amination of (Z)‐1‐allylidene‐2‐arylhydrazines with 2,2,6,6‐tetramethylpiperidine‐1‐oxyl (TEMPO)/N‐bromosuccinimide (NBS) provides highly substituted pyrazoles with 100 % regioselectivity in moderate to good yields. These protocols are effective at room temperature and offer a route for the construction of the target five membered heterocycles.

Journal

Asian Journal of Organic ChemistryWiley

Published: May 1, 2014

Keywords: ; ; ; ;

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