Changeable reactivity of ketyl radicals derived from 2-bromomethyl-2-(3-butenyl)benzocyclic-1-alkanones depending on electron transfer conditions employed.
Photoinduced electron transfer reaction of 2-bromomethyl-2-(3-butenyl)benzocyclic-1-alkanones with amines afforded 5-exo radical cyclization products while electron transfer reaction with samarium diiodide produced cyclopropanols.
Hasegawa
Eietsu
E
Department of Chemistry, Faculty of Science, Niigata University, Ikarashi-2 8050, Niigata 950-2181, Japan. ehase@chem.sc.niigata-u.ac.jp
Takizawa
Shinya
S
Iwaya
Kazuki
K
Kurokawa
Miyuki
M
Chiba
Naoki
N
Yamamichi
Keiko
K