Synthesis of cyclopentadienones catalyzed by methylidynetricobalt nonacarbonyl.
Easily prepared and air-stable methylidynetricobalt nonacarbonyl could be used as a catalyst for the intramolecular [2 + 2 + 1]-cocyclization of diynes and carbon monoxide producing cyclopentadienones.
Sugihara
T
T
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan. taku@ph.bunri-u.ac.jp
Wakabayashi
A
A
Takao
H
H
Imagawa
H
H
Nishizawa
M
M