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- W2071625892 abstract "The intramolecular cyclization of N,N-disubstituted 2′-halogenophenacylamine hydrobromides 1a–h to 1,1-disubstituted 3-oxoindolinium bromides 3a–f has been studied. Some 3-oxoindolinium salts have also been prepared according to a different pattern by intramolecular cyclization of the phenacyl halides resulting from the bromination of 2′-(dialkylamino)acetophenones 4 or from the treatment of 2′-(dialkylamino)-2-diazoacetophenones 6a, b with hydrogen halides. Removal of hydrogen halide in salts 3a–g gives indolylio oxides 2a–g; these compounds have been shown to be unstable and decompose easily giving in general complex mixtures; only in the case of tetrahydroisoquinoline-derived ylides 2e, g we have observed clear-cut reactions leading, via a Stevens rearrangement followed by oxidation, to the 6,7-dihydro-13H-indolo[2,1-b][3]benzazepin-13-ones 8a, b." @default.
- W2071625892 created "2016-06-24" @default.
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- W2071625892 date "2010-08-18" @default.
- W2071625892 modified "2023-10-14" @default.
- W2071625892 title "ChemInform Abstract: Synthesis of Quaternary Indoxyl Derivatives by Intramolecular Cyclization of Some Substituted Acetophenones." @default.
- W2071625892 cites W2952171652 @default.
- W2071625892 doi "https://doi.org/10.1002/chin.199447063" @default.
- W2071625892 hasPublicationYear "2010" @default.
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