Carbocyclisch substituierte N-Methansulfonyl-isoindoline Synthesevorstufen für unsymmetrisch substituierte 2H-Isoindole / Carbocyclic Substituted N-Methane-sulfonyl-isoindolines Synthetic Precursors for Unsymmetric Substituted 2H-Isoindoles
Open Access
- 1 December 1976
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 31 (12) , 1635-1640
- https://doi.org/10.1515/znb-1976-1215
Abstract
N-methane-sulfonyl-isoindolines substituted in the carbocyclic moiety can be prepared from the corresponding 1,2-bis-[brommethyl]benzenes and methane sulfonamid by cyclisation under basic conditions. The title compounds are interesting precursors for the generation of carbocyclic substituted 2H-isoindoles via base catalysed 1,2-elimination of methane sulfinic acid. By this reaction sequence the sulfonyl residue is simultaneously involved as a protecting group and as a leaving group.Keywords
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