Literature DB >> 30505072

"It's a (Kinetic) Trap!" - Selectively Differentiating Allylic Azide Isomers.

Joseph J Topczewski1, Matthew R Porter1.   

Abstract

Allylic azides are known to undergo the Winstein rearrangement and are often isolated as an equilibrating mixture of isomers. While this process has been known for almost 60 years, very few synthetic applications of this process have been reported. The absence of methods exploiting these intermediates likely stems from a paucity of approaches for gaining the required selectivity to differentiate the isomers. Our lab has made some progress in leveraging this unusual reaction into practical synthetic methodology. Presented herein is a summary of our lab's recent accomplishments in selectively trapping allylic azides.

Entities:  

Keywords:  allylic; azides; cyclization; dynamic kinetic resolution; stereoselective; synthesis

Year:  2018        PMID: 30505072      PMCID: PMC6258082          DOI: 10.1055/s-0037-1609479

Source DB:  PubMed          Journal:  Synlett        ISSN: 0936-5214            Impact factor:   2.454


  24 in total

1.  Non-sequential processes for the transformation of a racemate into a single stereoisomeric product: proposal for stereochemical classification.

Authors:  K Faber
Journal:  Chemistry       Date:  2001-12-03       Impact factor: 5.236

2.  Stereoselective Dynamic Cyclization of Allylic Azides: Synthesis of Tetralins, Chromanes, and Tetrahydroquinolines.

Authors:  Matthew R Porter; Rami M Shaker; Cristian Calcanas; Joseph J Topczewski
Journal:  J Am Chem Soc       Date:  2018-01-10       Impact factor: 15.419

3.  Efficient entry to the hasubanan alkaloids: first enantioselective total syntheses of (-)-hasubanonine, (-)-runanine, (-)-delavayine, and (+)-periglaucine B.

Authors:  Seth B Herzon; Nicholas A Calandra; Sandra M King
Journal:  Angew Chem Int Ed Engl       Date:  2011-06-03       Impact factor: 15.336

4.  Hasubanan alkaloids with delta-opioid binding affinity from the aerial parts of Stephania japonica.

Authors:  Anthony R Carroll; Thirumavalavan Arumugan; Joanne Redburn; Ana Ngo; Gordon P Guymer; Paul I Forster; Ronald J Quinn
Journal:  J Nat Prod       Date:  2010-05-28       Impact factor: 4.050

5.  Hasubanan type alkaloids from Stephania longa.

Authors:  Hua Zhang; Jian-Min Yue
Journal:  J Nat Prod       Date:  2005-08       Impact factor: 4.050

6.  Stereocontrol in a combined allylic azide rearrangement and intramolecular Schmidt reaction.

Authors:  Ruzhang Liu; Osvaldo Gutierrez; Dean J Tantillo; Jeffrey Aubé
Journal:  J Am Chem Soc       Date:  2012-04-10       Impact factor: 15.419

7.  Synthesis of the transfer-RNA nucleoside queuosine by using a chiral allyl azide intermediate.

Authors:  Florian Klepper; Eva-Maria Jahn; Volker Hickmann; Thomas Carell
Journal:  Angew Chem Int Ed Engl       Date:  2007       Impact factor: 15.336

8.  Dynamic Kinetic Resolution of Allylic Azides via Asymmetric Dihydroxylation.

Authors:  Amy A Ott; Charles S Goshey; Joseph J Topczewski
Journal:  J Am Chem Soc       Date:  2017-06-05       Impact factor: 15.419

9.  Organic azides: an exploding diversity of a unique class of compounds.

Authors:  Stefan Bräse; Carmen Gil; Kerstin Knepper; Viktor Zimmermann
Journal:  Angew Chem Int Ed Engl       Date:  2005-08-19       Impact factor: 15.336

10.  Iridium-Catalyzed Enantioselective Fluorination of Racemic, Secondary Allylic Trichloroacetimidates.

Authors:  Qi Zhang; David P Stockdale; Jason C Mixdorf; Joseph J Topczewski; Hien M Nguyen
Journal:  J Am Chem Soc       Date:  2015-09-10       Impact factor: 15.419

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