Synthesis of 2-substituted chromenes via ring-closing metathesis and stable 1-benzopyrylium ions

Authors
Doodeman, R Rutjes, FPJT Hiemstra, H
Citation
R. Doodeman et al., Synthesis of 2-substituted chromenes via ring-closing metathesis and stable 1-benzopyrylium ions, TETRAHEDR L, 41(31), 2000, pp. 5979-5983
Citations number
35
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
31
Year of publication
2000
Pages
5979 - 5983
Database
ISI
SICI code
0040-4039(20000729)41:31<5979:SO2CVR>2.0.ZU;2-O
Abstract
2-Substituted chromenes were obtained via combination of ring-closing metat hesis of allylic acetals to the corresponding cyclic acetals, followed by L ewis acid-mediated functionalization of the resulting stable 1-benzopyryliu m ion with suitable nucleophiles. (C) 2000 Elsevier Science Ltd. All rights reserved.