106785-60-8Relevant articles and documents
One-pot synthesis of spiro[diindeno[1,2-b:2′,1′-e]pyridine-11, 3′-indoline]-triones
Ghahremanzadeh, Ramin,Fereshtehnejad, Fatemeh,Bazgir, Ayoob
experimental part, p. 1031 - 1034 (2010/10/21)
(Chemical Equation Presented) A one-pot and pseudo four-component synthesis of spiro[diindeno[1,2-b:2′,1′-e]pyridine-11,3′-indoline]- trione derivatives by cyclo-condensation reaction of isatins, 1,3-indandione, and ammonium acetate in refluxing acetic acid is reported.