1.
Org Lett
; 10(5): 945-8, 2008 Mar 06.
Article
in English
| MEDLINE
| ID: mdl-18229935
ABSTRACT
Decarboxylative coupling of sp-sp2 carbons is possible by palladium catalyst. Employing propiolic acid (1) as a difunctional alkyne, and using the consecutive reactions of the Sonogashira reaction and the decarboxylative coupling, unsymmetrically substituted diaryl alkynes were obtained in moderate to good yield.