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Short synthesis of functionalized pentalongin derivatives using pyridinium ylid chemistry

Authors
Journal
Tetrahedron
0040-4020
Publisher
Elsevier
Publication Date
Volume
66
Issue
35
Identifiers
DOI: 10.1016/j.tet.2010.07.012
Keywords
  • Pyranonaphthoquinones
  • Pentalongin
  • Pyridinium Ylids

Abstract

Abstract 3-Substituted pentalongin derivatives possessing an acetal function at C-1 were synthesized by cyclization of acylmethylnaphthoquinones. The latter naphthoquinones were prepared starting from 2-dioxolanylnaphthoquinone by means of both a stoichiometric and a catalytic method deploying various pyridinium ylids.

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