Pd-catalyzed 5-endo-trig-type cyclization of β,γ-unsaturated carbonyl compounds: an efficient ring closing reaction to give γ-butenolides and 3-pyrrolin-2-ones.
The 5-endo-trig-type cyclization has been performed using a Pd-bis(isoxazoline) catalyst. The present cyclization of β,γ-unsaturated carbonyl compounds gave γ-butenolides and 3-pyrrolin-2-ones in good to excellent yields.
The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
Gan B
GB
Bajracharya
Priti S
PS
Koranne
Rashid N
RN
Nadaf
Randa Kassem Mohamed
RK
Gabr
Kazuhiro
K
Takenaka
Shinobu
S
Takizawa
Hiroaki
H
Sasai