An article Selective C3-alkenylation of oxindole with aldehydes using heterogeneous CeO2 catalyst WOS:000531430200008 published article about ENANTIOSELECTIVE CONSTRUCTION; AMIDES; NITRILES; ALCOHOLS; ESTERS; ACTIVATION; HYDRATION; VERSATILE; ISATIN in [Rashed, Md Nurnobi; Touchy, Abeda Sultana; Jeon, Jaewan; Siddiki, S. M. A. Hakim; Toyao, Takashi; Shimizu, Ken-ichi] Hokkaido Univ, Inst Catalysis, N-21,W-10, Sapporo, Hokkaido 0010021, Japan; [Chaudhari, Chandan] Nagoya Univ, Grad Sch Engn, Dept Chem Syst Engn, Nagoya, Aichi 4648603, Japan; [Toyao, Takashi; Shimizu, Ken-ichi] Kyoto Univ, Elements Strategy Initiat Catalysts & Batteries, Kyoto 6158520, Japan in 2020.0, Cited 39.0. HPLC of Formula: C8H7NO. The Name is Indolin-2-one. Through research, I have a further understanding and discovery of 59-48-3
We report herein that a commercially available CeO2 is an active and reusable catalyst for the C3-selective alkenylation of oxindole with aldehydes under solvent-free conditions. This. catalytic method is generally applicable to different aromatic and aliphatic aldehydes, giving 3-alkyledene-oxindoles in high yields (87%-99%) and high stereoselectivities (79%-93% to E-isomers). This is the first example of the catalytic synthesis of 3-alkenyl-oxindoles from oxindole and various aliphatic aldehydes. The Lewis acid-base interaction between Lewis acid sites on CeO2 and benzaldehyde was studied by in situ IR. The structure-activity relationship study using CeO2 catalysts with different sizes suggests that defect-free CeO2 surface is the active site for this reaction. (C) 2020, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
HPLC of Formula: C8H7NO. About Indolin-2-one, If you have any questions, you can contact Rashed, MN; Touchy, AS; Chaudhari, C; Jeon, J; Siddiki, SMAH; Toyao, T; Shimizu, K or concate me.
Reference:
Indoline – Wikipedia,
,Indoline | C8H9N – PubChem