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Thermal rearrangement of tert-butyl substituted 9,10- and 11,12-allenic retinoids: 11-cis-isomers of 19,19,19- and 20,20,20-trimethylretinoids

✍ Scribed by Giin-Yuan Shen; Angel R de Lera; Thea C Norman; Alberto Haces; William H Okamura


Book ID
108382981
Publisher
Elsevier Science
Year
1987
Tongue
French
Weight
306 KB
Volume
28
Category
Article
ISSN
0040-4039

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Synthesis and spectroscopic characteriza
✍ M. Groesbeek; G. W. Robijn; J. Lugtenburg πŸ“‚ Article πŸ“… 2010 πŸ› Elsevier Science 🌐 English βš– 756 KB

## Abstract __7E,13E__‐11,19‐10,20‐dimethanoretinal (1) and its 13__Z__ isomer 2 were prepared from β‐ionone, using the novel synthon 2‐(diethoxyphosphinyl)‐5,5‐dimethoxyhexanenitrile. This synthon was also used to prepare __7E,9E,13E__‐10,20‐methanoretinal (3) and its 13__Z__ isomer 4 in high yiel