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Synthesis of Enantiopure Tertiary Skipped Diynes via One-Pot Desymmetrizing TMS-Cleavage

Authors :
Nicolas Vanthuyne
Malek Nechab
Institut de Chimie Radicalaire (ICR)
Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Institut des Sciences Moléculaires de Marseille (ISM2)
Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS)-École Centrale de Marseille (ECM)-Institut de Chimie du CNRS (INC)
Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Source :
Organic Letters, Organic Letters, American Chemical Society, 2012, 14 (15), pp.3974--3977. ⟨10.1021/ol3017462⟩, Organic Letters, 2012, 14 (15), pp.3974--3977. ⟨10.1021/ol3017462⟩
Publication Year :
2012
Publisher :
American Chemical Society (ACS), 2012.

Abstract

International audience; Enantiopure tetrasubstituted skipped diynes were readily synthesized from N-protected amino esters upon addition of lithium TMS-acetylide which was found to be desymmetrizing through one-pot selective TMS-cleavage. The deprotection of the TMS group was realized through a one-pot silicon atom attack by the liberated methoxide, which was diastereoselective due to a conformational favorable chelate.

Details

ISSN :
15237052 and 15237060
Volume :
14
Database :
OpenAIRE
Journal :
Organic Letters
Accession number :
edsair.doi.dedup.....aa2f4cc28892760178f28433b88ba087
Full Text :
https://doi.org/10.1021/ol3017462