Stereoselective synthesis of cis-beta-methyl- and phenyl-substituted alkenylboronates by platinum-catalyzed dehydrogenative borylation.
Changing places: Intramolecular B(pin)/H exchange took place in the presence of a platinum-phosphane catalyst, giving synthetically useful cis-beta-methyl-substituted alkenylboronates stereoselectively (see scheme; B(pin) = 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl).
Ohmura
Toshimichi
T
Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.
Takasaki
Yuta
Y
Furukawa
Hideki
H
Suginome
Michinori
M