Cobalt-catalyzed intramolecular Heck-type reaction of 6-halo-1-hexene derivatives.
[reaction: see text] Treatment of 6-iodo-1-hexene derivatives with trimethylsilylmethyl Grignard reagent in the presence of CoCl(2)(dppb) in refluxing THF affords Heck-type products, methylenecyclopentanes, in good yields.
Fujioka
Takuma
T
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan.
Nakamura
Tomoaki
T
Yorimitsu
Hideki
H
Oshima
Koichiro
K