TOWARDS THE FIRST SYNTHESIS OF SALVIANOLIC ACID-F - AN UNEXPECTED INTRAMOLECULAR DIELS-ALDER CYCLIZATION

Authors
DALLA V COTELLE P
Citation
V. Dalla et P. Cotelle, TOWARDS THE FIRST SYNTHESIS OF SALVIANOLIC ACID-F - AN UNEXPECTED INTRAMOLECULAR DIELS-ALDER CYCLIZATION, Tetrahedron letters, 39(45), 1998, pp. 8285-8286
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Tetrahedron letters → ACNP
ISSN journal
00404039
Volume
39
Issue
45
Year of publication
1998
Pages
8285 - 8286
Database
ISI
SICI code
0040-4039(1998)39:45<8285:TTFSOS>2.0.ZU;2-Y
Abstract
The reaction of tetramethylsalvianolic acid F 3 with BBr3 led to the e xpected salvianolic acid F 2 in 10% yield. 2 underwent Diels-Alder cyc lisation to 5 or cyclisation to benzofuran 6 depending on the reaction conditions. (C) 1998 Elsevier Science Ltd. All rights reserved.