Intramolecular Pauson-Khand reaction of various fluorine-containing enynes
was investigated under various conditions. The reaction of the substrates.
which have fluorine atom(s) or fluorine-containing group(s) attached to alk
enyl moiety, gave the corresponding cyclopentenones in low to moderate yiel
d, while that of the substrates bearing fluorine-containing groups attached
to alkynyl moiety afforded the corresponding cyclopentenones in low to hig
h yield. (C) 2001 Elsevier Science B.V. All rights reserved.