73271-41-7Relevant academic research and scientific papers
Some organotellurium(iv) complexes of 1-methyl-3-(p-tolylimino)indolin-2-one schiff base
KUMAR, MANISH,VERMA,GARG, SAPANA
, p. 1236 - 1244 (2021/06/09)
Six new hexa-coordinated organotellurium(IV) complexes of type RTeCl3 NMeIPT and R2TeCl2 NMeIPT (R = 4-hydroxyphenyl, 4- methoxyphenyl or 3-methy-4-hydroxyphenyl; NMeIPT(L) = Schiff base (1-methyl-3-(p-tolylimino)indolin-2-one) derived from condensation o
Synthesis of Novel Spiro[indol-2,2′-pyrroles] Using Isocyanide-Based Multicomponent Reaction
Jalli, Venkataprasad,Krishnamurthy, Suvratha,Kawasaki, Hiroyoshi,Moriguchi, Tetsuji,Tsuge, Akihiko
supporting information, p. 2216 - 2226 (2015/09/22)
An efficient and facile method for the synthesis of novel spiro[indole-2,2′-pyrroles] from N-methyl-3-isatin imines, t-butyl isocyanide, and dialkyl acetylenedicarboxylate has been achieved by [3 + 2] cyclo addition reaction. All the products were purifie
A copper-catalyzed one-pot, three-component diastereoselective synthesis of 3-spiroazetidinimine-2-oxindoles and their synthetic transformation into fluorescent conjugated indolones
Periyaraja, Somasundharam,Shanmugam, Ponnusamy,Mandal, Asit Baran
, p. 954 - 965 (2014/03/21)
A facile and efficient copper(I)-catalyzed one-pot, three-component diastereoselective synthesis that provides new 3-spiroazetidinimine-2-oxindoles in excellent yield has been accomplished. The 3-spiroazetidinimine-2-oxindoles underwent a facile ring-open
A Copper-Catalyzed One-Pot, Three-Component Diastereoselective Synthesis of 3-Spiroazetidinimine-2-oxindoles and Their Synthetic Transformation into Fluorescent Conjugated Indolones
Periyaraja, Somasundharam,Shanmugam, Ponnusamy,Mandal, Asit Baran
, p. 954 - 965 (2015/10/05)
A facile and efficient copper(I)-catalyzed one-pot, three-component diastereoselective synthesis that provides new 3-spiroazetidinimine-2-oxindoles in excellent yield has been accomplished. The 3-spiroazetidinimine-2-oxindoles underwent a facile ring-opening reaction of the spiroazetidinimine unit by treatment with KOH/MeOH and p-thiocresol under basic conditions to afford two new classes of fluorescent conjugated indolones. This method has general applications with regard to the imines that are derived from 9-fluorenone, 1,2-diketones, and 1,2,3-triketones. A facile and efficient copper(I)-catalyzed one-pot, three-component diastereoselective synthesis that provides new 3-spiroazetidinimine-2-oxindoles in excellent yield has been accomplished. The ring-opening reaction of the 3-spiroazetidinimine-2-oxindoles has also been described. This method has general applications with regard to the imines of 9-fluorenone, 1,2-diketones, and 1,2,3-triketones.
Isatin derivatives, a novel class of transthyretin fibrillogenesis inhibitors
Gonzalez, Asensio,Quirante, Josefina,Nieto, Joan,Almeida, Maria Rosario,Saraiva, Maria Joao,Planas, Antoni,Arsequell, Gemma,Valencia, Gregorio
supporting information; experimental part, p. 5270 - 5273 (2010/03/24)
The isatin core structure was found to be a novel chemical scaffold in transthyretin (TTR) fibrillogenesis inhibitor design. Among the series of isatin analogues prepared and tested, the nitro compound 1,3-dihydro-3-[(4-nitrophenyl)imino]-2H-indol-2-one (2r) is as potent as triiodophenol, which is one of the most active known TTR inhibitors. The E/Z stereochemistry of these molecules in solution, elucidated by 1H NMR, does not influence their biological activity. The compounds do not bind to the native tetrameric TTR suggesting that their inhibitory action is independent of the protein binding and stabilization.
Reactions of α-diazoketones with indolinone imines: Synthesis of new 1,3,3-triaryl-1′-methylspiro[azetidine-2,3′-indoline]-2′, 4-diones
Singh, Girija S.,Mmolotsi, Boycie J.
, p. 1665 - 1668 (2007/10/03)
The paper describes the synthesis of new 1,3,3-triary-1′- methylspiro[azetidine-2,3′-indoline]-2′,4-diones from reaction of the 2-diazo-1,2-diarylethanones with 3-arylimino-1-methyl-2-indolinones. The compounds have been characterized by satisfactory anal
Reactions of 3-Arylimino-2-Indolinones with p-Substituted Phenylthiosemicarbazides
Varma, Rajendra S.,Garg, Pradeep K.
, p. 980 - 981 (2007/10/02)
3-Arylimino-2-indolinones (II) have been prepared by the condensation of isatins (I) with anilines.Reactions of II with p-substituted phenylthiosemicarbazides have resulted (in every instance) in the displacement of arylimino groups by the phenylthiosemic
