Literature DB >> 24328754

Arylthio-metal exchange of α-arylthioalkanenitriles.

Dinesh Nath1, Melanie C Skilbeck, Iain Coldham, Fraser F Fleming.   

Abstract

The addition of BuLi, Bu3MgLi, Et2ZnBuLi, or Me2CuLi to α-arylthioalkanenitriles triggers an arylthio-metal exchange. NMR spectroscopic analyses implicate organometallic attack on sulfur forming a three-coordinate sulfidate as the key intermediate. Electrophilic trapping affords tertiary and quaternary nitriles in high yield. The method addresses the challenge of improving the functional group tolerance and preventing polyalkylations.

Entities:  

Year:  2013        PMID: 24328754     DOI: 10.1021/ol403020s

Source DB:  PubMed          Journal:  Org Lett        ISSN: 1523-7052            Impact factor:   6.005


  3 in total

1.  Metalated nitriles: SNi' cyclizations with a propargylic electrophile.

Authors:  Ping Lu; Venkata S Pakkala; Jeffrey D Evanseck; Fraser F Fleming
Journal:  Tetrahedron Lett       Date:  2015-06-03       Impact factor: 2.415

2.  Asmic: An Exceptional Building Block for Isocyanide Alkylations.

Authors:  Embarek Alwedi; J Armando Lujan-Montelongo; Bhaskar R Pitta; Allen Chao; Rodrigo Cortés-Mejía; Jorge M Del Campo; Fraser F Fleming
Journal:  Org Lett       Date:  2018-09-06       Impact factor: 6.005

3.  Highly enantioselective metallation-substitution alpha to a chiral nitrile.

Authors:  Arghya Sadhukhan; Melanie C Hobbs; Anthony J H M Meijer; Iain Coldham
Journal:  Chem Sci       Date:  2016-10-25       Impact factor: 9.825

  3 in total

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