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Benzo- and indoloquinolizines: X—application of carbon-13 n.m.r. to the stereochemistry of the 4b,5,6,7,8,8a,10,11,16,16b-decahydrodibenz[f,h]indolo[2,3-a]quinolizine isomers

✍ Scribed by G. Van Binst; D. Tourwé; E. De Cock

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
389 KB
Volume
8
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The carbon‐13 n.m.r. spectra of three isomers of 4b, 5,6,7,8,8a,10,11,16,16b‐decahydrodibenz[f,h]indolo[2,3‐a]quinolizine were interpreted with the aid of the 1,2,3,4,4a,5,6,10b‐octahydro‐6‐phenylphenanthridines and the 2‐phenylcylohexylamines. The configuration and the conformation of these compounds can be determined from the chemical shift values.

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✍ G. Van Binst; G. Laus; D. Tourwé 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 English ⚖ 270 KB

## Abstract The influence of the configuration and the conformation on the ^13^C n.m.r. spectrum of 1,2,3,4,4a,6,7,8,9,13b‐decahydro‐9a__H__‐pyrido[1,2‐__f__] phenanthridine was investigated. These observations, coupled with the low temperature spectrum allowed us to confirm the __trans__‐__syn__‐_

Benzo- and indolo-quinolizine derivative
Benzo- and indolo-quinolizine derivatives XI—The configurational and conformational study of 1,2,3,4,4a,6,7,8,9,13b-decahydro-9aH-pyrido[1,2-f]phenanthridine isomers by 270 MHz 1H n.m.r.
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## Abstract The preferred conformations of the four isomers of 1,2,3,4,4a,6,7,8,9,13b‐decahydro‐9a__H__‐pyrido[1,2‐__f__] phenanthridine have been determined by 270 MHz ^1^H n.m.r. and i.r. spectroscopy. N.m.r. assignments are based on the specific chemical shifts of the protons adjacent to the nit