3-SUBSTITUTED 2-CYCLOPENTENONES FROM CYCLOPENTADIENES

Authors
LIN CC HSIA KS WU HJ
Citation
Cc. Lin et al., 3-SUBSTITUTED 2-CYCLOPENTENONES FROM CYCLOPENTADIENES, Journal of the Chinese Chemical Society, 40(6), 1993, pp. 587-591
Citations number
30
Categorie Soggetti
Chemistry
Journal title
Journal of the Chinese Chemical Society → ACNP
ISSN journal
00094536
Volume
40
Issue
6
Year of publication
1993
Pages
587 - 591
Database
ISI
SICI code
0009-4536(1993)40:6<587:32FC>2.0.ZU;2-V
Abstract
Oxidation of cyclopentadienes 1a-1j, which were prepared by alkylation of cyclopentadienyl anion with the corresponding alkyl bromides, with pyridinium chlorochromate (PCC) gave the 2-cyclopentenones 2a-2j resp ectively in 10-15% yields. Reaction of 3 and 5 with PCC gave the spiro compounds 4 and 6 respectively in 75-80% yields.