6533b86ffe1ef96bd12ce5d4

RESEARCH PRODUCT

Zur Struktur der Produkte der Reaktion vonE/Z-1-Benzolsulfonyl-3-(1-pentenyl)-indol mit N-Phenylmaleinimid: Ein erster Beitrag zur Konfigurations- und Konformationsanalyse in der Vinylindol-Cycloadditionsreihe

Gerlinde FrenzenHans-joachim SattlerLudwig PfeufferWerner MassaUlf Pindur

subject

chemistry.chemical_compoundchemistryStereochemistryCyclohexane conformationProton NMRCyclohexeneLiquid phaseGeneral ChemistryX ray analysisRing (chemistry)

description

The products2,3 of the reaction ofE/Z-1-benzenesulfonyl-3-(1-pentenyl)-indole (1) and N-phenylmaleimide were analysed by1H-NMR spectroscopy. Exemplarily, the structure elucidation of theendo-cyclo-adduct2 b was achieved by using several NMR techniques (diff. NOE-, INDOR-measurements, decoupling experiments, spectra simulation). The1H-NMR-spectroscopically gained prediction of relative configuration and conformation of2 b was supported on X-ray analysis. The cyclohexene ring of the new cycloadducts adopts in the liquid phase and in the crystal a slightly twisted boat conformation.

https://doi.org/10.1007/bf00808309