1.
Org Lett
; 13(12): 3285-7, 2011 Jun 17.
Article
in English
| MEDLINE
| ID: mdl-21604776
ABSTRACT
The regio- and stereoselective addition of carboxylic acids to aryl and trifluoromethyl group substituted unsymmetrical internal alkynes has been accomplished: the Ru(3)(CO)(12)/3PPh(3) catalyst system has effectively catalyzed the reaction to afford the trifluoromethyl group substituted (E)-enol esters with high regio- and stereoselectivities.
2.
Org Lett
; 13(5): 1001-3, 2011 Mar 04.
Article
in English
| MEDLINE
| ID: mdl-21288010
ABSTRACT
It found that the Ru(3)(CO)(12) coordinated with 2-(diphenylphosphino)benzonitrile (2-DPPBN) to effectively catalyze the [2 + 2 + 2] cyclotrimerization of the trifluoromethyl group substituted internal alkynes in high yields with up to >98% regioselectivity. Isolation of a ruthenacyclopentadiene was successful and confirmed that the complex is a reaction intermediate.