32380-48-6Relevant academic research and scientific papers
Visible light induced radical cyclization of o-iodophenylacrylamides: A concise synthesis of indolin-2-one
Dong, Wuheng,Liu, Yan,Hu, Bei,Ren, Kai,Li, Yuyuan,Xie, Xiaomin,Jiang, Yuexiu,Zhang, Zhaoguo
supporting information, p. 4587 - 4590 (2015/05/27)
A [Ir(ppy)2(dtb-bpy)]PF6-catalyzed intramolecular radical cyclization of o-iodophenylacrylamides affording indolin-2-ones in moderate to excellent yields via 5-exo-trig radical cyclization under visible light is presented. This method provides new access to the synthesis of indolin-2-ones under mild reaction conditions. This journal is
Molybdenum-catalyzed asymmetric allylic alkylation of 3-alkyloxindoles: Reaction development and applications
Trost, Barry M.,Zhang, Yong
supporting information; experimental part, p. 2916 - 2922 (2011/05/02)
We report a full account of our work towards the development of Mo-catalyzed asymmetric allylic alkylation reactions with 3-alkyloxindoles as nucleophiles. The reaction is complementary to the Pd-catalyzed reaction with regard to the scope of oxindole nucleophiles. A number of 3-alkyloxindoles were alkylated successfully under mild conditions to give products with excellent yields and good-to-excellent enantioselectivities. Applications of this method to the preparation of indoline alkaloids such as (-)-physostigmine, ent-(-)-debromoflustramine B, and the indolinoquinoline rings of communesin B are reported.
Preparation of 3-alkyl-oxindoles by copper(II)-mediated C-H, Ar-H coupling followed by decarboxyalkylation
Pugh, David. S.,Klein, Johannes E. M. N.,Perry, Alexis,Taylor, Richard J. K.
experimental part, p. 934 - 938 (2010/07/16)
A novel route for the conversion of anilides into 3-alkyl-oxindoles is described in which a copper(II)-mediated cyclization process is followed by an acid-mediated decarboxyalkylation. Scope and limitation studies are reported together with a telescoped variant which incorporates in situ N-deprotection. Georg Thieme Verlag Stuttgart - New York.
Molybdenum-catalyzed asymmetric allylation of 3-alkyloxindoles: Application to the formal total synthesis of (-)-physostigmine
Trost, Barry M.,Zhang, Yong
, p. 4590 - 4591 (2007/10/03)
The first example of Mo-catalyzed asymmetric allylation for the generation of quaternary stereocenters at a prochiral nucleophile is reported. A variety of 3-alkyl oxindoles can be alkylated with high yields and enantioselectivity. This method provides expedited access to (-)-physostigmine and its analogues. Copyright
An Efficient Synthesis of Spiro via Radical Cyclisation
Jones, Keith,Thompson, Mervyn,Wright, Colin
, p. 115 - 116 (2007/10/02)
Treatment of the o-bromo-N-acryloylanilides (4) with tri-n-butylstannane leads to the formation of 3-substituted- and 3,3-disubstituted-2-oxindoles (5) in high yield.
