Issue 24, 2009

TfOH-catalyzed intramolecular alkyne–ketonemetathesis leading to highly substituted five-membered cyclic enones

Abstract

The intramolecular carbocyclization of tethered alkynyl ketones to five-membered cyclic enones is shown to be catalyzed by trifluoromethanesulfonic acid in MeOH, proceeding in good to excellent yields and with high selectivities.

Graphical abstract: TfOH-catalyzed intramolecular alkyne–ketone metathesis leading to highly substituted five-membered cyclic enones

Supplementary files

Article information

Article type
Communication
Submitted
25 Бер 2009
Accepted
07 Тра 2009
First published
21 Тра 2009

Chem. Commun., 2009, 3533-3535

TfOH-catalyzed intramolecular alkyneketone metathesis leading to highly substituted five-membered cyclic enones

T. Jin, F. Yang, C. Liu and Y. Yamamoto, Chem. Commun., 2009, 3533 DOI: 10.1039/B905954G

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