97004-64-3Relevant academic research and scientific papers
Enantioselective Arylation of Oxindoles Using Modified BI-DIME Ligands
Mangunuru, Hari P. R.,Malapit, Christian A.,Haddad, Nizar,Reeves, Jonathan T.,Qu, Bo,Rodriguez, Sonia,Lee, Heewon,Yee, Nathan K.,Song, Jinhua J.,Busacca, Carl A.,Senanayake, Chris H.
, p. 4435 - 4443 (2018)
The Pd-catalyzed 3-arylation of 2-oxindoles with aryl bromides, chlorides and triflates is found to proceed using i -Pr-BI-DIME and Me 2 -BI-DIME ligands. The mono-arylation of 3-unsubstituted oxindoles is accomplished using a Pd 2 (dba) 3 / i -Pr-BI-DIME catalyst system, and gives good yields of 3-aryloxindoles from aryl bromides and chlorides. The arylation of 3-substituted oxindoles is also possible using this catalyst/ligand system. The asymmetric arylation of 3-substituted oxindoles is accomplished using Me 2 -BI-DIME to furnish oxindoles bearing a quaternary C-3 stereocenter in enantiomeric ratios of up to 93:7.
Heterocyclic 8?-Systems, 16 - Elimination Reactions of 2-Alkoxy-3-hydroxyindolines
Beitzke, Bernhard,Schmidt, Richard R.
, p. 1726 - 1731 (2007/10/02)
Thermolysis of 2-ethoxy-3-hydroxyindolines 1a - f affords oxindoles 3a - f as main products and the corresponding 3-indolinones 2a - f as by-products.The reaction course via indole 2,3-oxide intermediates is discussed.For this reason rearrangement reactio
