125908-24-9Relevant articles and documents
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.