89405-25-4Relevant academic research and scientific papers
Synthesis of biologically important novel fluorinated spiro heterocycles under microwaves catalyzed by montmorillonite KSF
Arya, Kapil,Dandia, Anshu
, p. 224 - 231 (2007)
The arylidienes of fluorinated spiro thiazolidines (5) containing α,β-unsaturated function have been used as component of Micheal addition with equimolar amount of 2-aminopyridine (6a) to give novel fluorinated spiro [indole-3,2′-pyrido[1,2-a]thiazolo[5,4
"On water" synthesis of spiro-indoles via Schiff bases
Panda, Siva S.,Jain, Subhash C.
experimental part, p. 1187 - 1194 (2012/09/25)
A fast, efficient, and clean "on water" synthesis of new Schiff bases and their conversion to spiro compounds under microwave irradiation, as well as in water, is reported. Indol-2,3-diones were reacted separately with various heterocyclic and aromatic am
Studies in spiroheterocycles: Part XI - Synthesis of novel fluorine containing 4',5'-dihydrospirothiadiazepine>-2(1H),5'-diones from isatins
Joshi, Krishna C.,Dandia, Anshu,Ahmed, Nidhal
, p. 639 - 641 (2007/10/02)
Reaction of mercaptoacetic acid with fluorinated 3-aryliminoindol-2-ones, prepared in situ from fluorinated indole-2,3-diones(isatins) and fluorinated anilines, yields 3'-arylspiro-2(1H),4'-diones(I).Under similar conditions, 3-(4-phenylpyrazol-5-ylimino)indol-2-ones(II) yield a novel system 4',5'-dihydro-9'-phenylspirothiadiazepine>-2(1H),5'-dione (III). 3-(4-Phenylpyrazol-5-ylimino)indol-2-ones have been synthesized by the reaction of fluorine containing indole-2,3-diones with 3-amino-4-phenylpyrazole in abs. ethanol.The structures of the compounds have been established on the basis of elemental analyses, and IR, PMR, 19F NMR and mass spectral data.
