Polyoxygenated coumarins. Oxonium ylides en route to polyoxa-macrocyclic coumarins

Citation
S. Cenini et al., Polyoxygenated coumarins. Oxonium ylides en route to polyoxa-macrocyclic coumarins, TETRAHEDRON, 55(21), 1999, pp. 6577-6584
Citations number
29
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON
ISSN journal
00404020 → ACNP
Volume
55
Issue
21
Year of publication
1999
Pages
6577 - 6584
Database
ISI
SICI code
0040-4020(19990521)55:21<6577:PCOYER>2.0.ZU;2-6
Abstract
The overall sequence of Rh(II)-catalysed carbenoid generation, oxonium ylid e formation and subsequent sigmatropic rearrangement utilising 3-diazo-2H-1 -benzopyran-2,4(3H)-dione in cyclic ethers as solvents has been satisfactor ily used to achieve the synthesis of several medium- to large-membered poly oxa macrocycles embodying the coumarin subunit. (C) 1999 Elsevier Science L td. All rights reserved.