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The conformation of ring C in 8-podocarpenes

✍ Scribed by Samuel G. Levine; I.Y. Chen; A.T. McPhail; Philip Coggon

Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
213 KB
Volume
12
Category
Article
ISSN
0040-4039

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✦ Synopsis

Ring A of the 5(10)-unsaturated steroid system is subject to an unusual type of conformational control which has been ascribed' primarily to non-bonded interactions between the C-l and C-11 hydrogen substituents.

πŸ“œ SIMILAR VOLUMES

Inversion of the C8 non-planar ring
Inversion of the C8 non-planar ring
✍ Z. Slanina; S.-L. Lee; J.-P. FranΓ§ois; J. Kurtz; L. Adamowicz πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 440 KB

Inversion of the recently reported non-planar cyclic minimum-energy structure of Cs ( DZd symmetry) is studied by means of the second-order Mrxller-Plesset perturbation treatment with the 6-31G\* basis set. Two new planar cyclic saddle points have been found, possessing D4s and Czh symmetry and exhi