1-Oxoisoindole cations
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 11,p. 1600-1606
- https://doi.org/10.1039/j39700001600
Abstract
The preparation and properties of 3-t-butyl-, 3-phenyl-, 2-methyl-3-phenyl-, 2-ethyl-3-phenyl-, and 2,3-diphenyl-1-oxoisoindolium hexachloroantimonates, obtained from the respective 3-chloro-2,3-dihydro-1-oxoisoindoles and antimony pentachloride, are described. These 1-oxoisoindole cations were also formed when the corresponding 2,3-dihydro-3-hydroxy-1-oxoisoindoles were dissolved in concentrated sulphuric acid. 2,3-Dihydro-3-hydroxy-1-oxoisoindole, when treated with thionyl chloride, gave a cyclic 1-oxoisoindole trimer, and 3,3′-diphenyl-1,1′-bi-isoindolylidene was obtained from 2,3-dihydro-3-phenyl-1-oxoisoindole and the same reagent.Keywords
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