Remarkable stereoselectivity in the alkylation of a hydroazulenone: Progress towards the total synthesis of guanacastepene Journal Article


Authors: Dudley, G. B.; Tan, D. S.; Kim, G.; Tanski, J. M.; Danishefsky, S. J.
Article Title: Remarkable stereoselectivity in the alkylation of a hydroazulenone: Progress towards the total synthesis of guanacastepene
Abstract: exo-Methylene ketone 6 serves as a vehicle for elaboration of the C8 quaternary center en route to guanacastepene via a conjugate addition-alkylation sequence. Methylation of the cycloheptadienolate derived from 7 is highly selective for the desired relative stereochemistry, as determined by NMR and crystallographic analysis. © 2001 Published by Elsevier Science Ltd.
Keywords: unclassified drug; methylation; drug structure; drug synthesis; alkylation; structure analysis; nuclear magnetic resonance; reaction analysis; chemical reaction; stereochemistry; carbon; alkadiene; conjugation; crystallography; silane derivative; ketone derivative; carbene; alkene derivative; guanacastepene; article; cycloheptadienolic acid; hydroazulenone
Journal Title: Tetrahedron Letters
Volume: 42
Issue: 39
ISSN: 0040-4039
Publisher: Pergamon-Elsevier Science Ltd  
Date Published: 2001-09-24
Start Page: 6789
End Page: 6791
Language: English
DOI: 10.1016/s0040-4039(01)01342-9
PROVIDER: scopus
DOI/URL:
Notes: Export Date: 21 May 2015 -- Source: Scopus
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  1. Gregory Dudley
    6 Dudley
  2. Guncheol Kim
    3 Kim
  3. Derek S Tan
    91 Tan