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The streochemical, course of the 1,5-shift of hydrogen in the biosynthesis of ophiobolins

✍ Scribed by L. Canonica; A. Fiecchi; H.Galli Kienle; B.M. Ranzi; A. Scala

Publisher
Elsevier Science
Year
1967
Tongue
French
Weight
123 KB
Volume
8
Category
Article
ISSN
0040-4039

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πŸ“œ SIMILAR VOLUMES

The biosynthesis-of ophiobolins
The biosynthesis-of ophiobolins
✍ L. Canonica; A. Fiecchi; M.Galli Kienle; B.M. Ranzi; A. Scala; T. Salvatori; E. πŸ“‚ Article πŸ“… 1967 πŸ› Elsevier Science 🌐 French βš– 314 KB

Ophiobolins A and B (1) are substances constructed from five isoprene units linearly linked head to tail (2). In their biogenetic hypothesis Nozoe et al. proposed that the introduction of a 3-hydroxyl substituent is accounted for by attack at 3-C by an agent which transfers OH+ (3).

The chemistry of cycloheptatriene: Part
The chemistry of cycloheptatriene: Part VIII: Transannular 1-5 shifts of hydrogen in phenylcycloheptatriene
✍ A. P. ter Borg; H. Kloosterziel πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 714 KB

## Abstract 7‐Phenylcycloheptatriene‐1,3,5 rearranges on heating to a mixture of the 3‐, 1‐ and 2‐isomers. These are formed in the order indicated by successive trans‐annular 1‐5 shifts of hydrogen. The isomerization of the 7‐ to the 3‐isomer, by which the trienic and aromatic systems enter into co