Copper-Catalyzed Oxidative Dimerization of 2-Oxindoles under Base-Free Conditions
Keyword(s):
A practical copper-catalyzed oxidative dimerization of 2-oxindoles using di-tert-butyl peroxide as the radical initiator under base-free conditions was achieved, which not only provided an efficient route to prepare various 3,3′-bioxindoles, but also represented a simple strategy for C(sp3)–H functionalization/C–C bond formation. A radical mechanism was proposed based on the reaction results and controlling experiments.
Keyword(s):
1971 ◽
Vol 75
(24)
◽
pp. 3651-3655
◽
1969 ◽
Vol 18
(8)
◽
pp. 1543-1547
2017 ◽
Vol 359
(20)
◽
pp. 3602-3610
◽