926250-76-2Relevant academic research and scientific papers
Synthesis of 2-hydroxy-3-indolinones and 3-hydroxy-2-indolinones by anionic cyclization, in situ oxidation and rearrangement
Coldham, Iain,Adams, Harry,Ashweek, Neil J.,Barker, Thomas A.,Reeder, Andrew T.,Skilbeck, Melanie C.
, p. 2457 - 2460 (2010)
Lithiation with butyllithium of 2-(benzylamino)benzamides (N-benzyl anthranilamides) occurs at the benzylic position to give an α-amino-organolithium that cyclizes to the 3-indolinone (indoxyl) ring (similar to a Parham cyclization). Autoxidation in air g
