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1H and 13C NMR studies of E/Z 2-hydroxyindolenines

✍ Scribed by Martha S. Morales-Ríos; M. Alvina Bucio; Pedro Joseph-Nathan

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
295 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^1^H NMR spectra of E/Z 2‐hydroxyindolenines are reported in both CDCl~3~ and DMSO‐d~6~ solvents. The data suggest a preferred conformation of the heterocyclic ring, which is slightly distorted from planarity, in agreement with the x‐ray crystallographic data of one of the isomers. The ^13^C NMR spectra for the Z‐hydroxyindolenines are also described. Substituent effects on E/Z isomerism about the exocyclic CC bond are discussed.

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