Chemistry of singlet oxygen. : VIII. An unusual allenic oxygenation product.
โ Scribed by Christopher S. Foote; Martin Brenner
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- French
- Weight
- 195 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
with studies of the protective action of carotenoids in photodynamic sysinvestigating the dye-sensitized photooxygenation ii certain model compounds. The photooxygenation of 3-methyl-l-(2,6,6-trimethylcyctohexen-l-yl)-1,3-butadiene (I) (4), folloued by reduction, leads to a novel allenic product (II), in addition to products resulting from more conventional Diels-Alder type addition of oxygen (III) and ene-type addi-
๐ SIMILAR VOLUMES
Decomposition of the saturated endoperoxide derived fmm 6-t-butylfulvene at 1OOW gives a stable allene oxide wbicb was isolated and cbaracwized by spcctrosoopy and chemical transformation8. The thermal i8omrization of tbe psrent unsaturated system is also described and the decompo8ition mechanism8 a
The highly diastereoselectlve allene formation by photosensitized oxygenation of the significantly twisted novel 1,3-dienes which possess an sp 3 chiral center due to a secondary hydroxy group and a tertiary alkoxy group at allylic positions is described.