Benzo‐ and indoloquinolizines. XII —carbon‐13 n.m.r. study of the conformation of the 1,2,3,4,4a,6,7,8,9,13b‐decahydro‐9a  H ‐pyrido[1,2‐ f ]phenanthridine isomers | Zendy

Van Binst G. | Zendy; Laus G. | Zendy; Tourwé D. | Zendy

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Benzo‐ and indoloquinolizines. XII —carbon‐13 n.m.r. study of the conformation of the 1,2,3,4,4a,6,7,8,9,13b‐decahydro‐9a H ‐pyrido[1,2‐ f ]phenanthridine isomers

Author(s) -

Van Binst G.,

Laus G.,

Tourwé D.

Publication year - 1977

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270100104

Subject(s) - phenanthridine , conformational isomerism , chemistry , stereochemistry , crystallography , molecule , organic chemistry

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 ‐ cis as the preferred conformation for one of the four isomers. At −40°C, 2–3% of another conformer could be detected and identified as the cis ‐ anti ‐ cis ‐2.

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