Rhodium-catalyzed aryl- and alkylation-oligomerization of alkynoates with organoboron reagents giving salicylates.
The reaction of alkynoates with aryl- or alkylboron reagents in the presence of a rhodium/diene catalyst gave high yields of salicylate derivatives with high selectivity, which consist of three or four molecules of the alkynoate and one organic group derived from the organoboron reagents.
Yasuhara
Yuichi
Y
Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
Nishimura
Takahiro
T
Hayashi
Tamio
T