๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Photochemical rearrangements of 2-cyclohexenones

โœ Scribed by O.L. Chapman; T.A. Rettig; A.A. Griswold; A.I. Dutton; P. Fitton

Publisher
Elsevier Science
Year
1963
Tongue
French
Weight
274 KB
Volume
4
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

โœฆ Synopsis

The dramatic photochemical rearrangements of santonin and other 2,5-cyclohexadienones 3 contrast sharply with the reported photodimerizations of 2-cyclohexenones. It has been generally assumed that the complex photochemical rearrangements of the 2,5-cyclohexadienones are not possible with simple E-cyclohexenones. Kwie, Shoulders and Gardner 4 have recently shown that 4-cholesten-j-one undergoes a photoisomerization of the santonin to lumi-Ph 2049

๐Ÿ“œ SIMILAR VOLUMES

Photochemical Reduction of 2-Bromo-4,4-d
Photochemical Reduction of 2-Bromo-4,4-dimethyl-2-cyclohexenone
โœ Hermann Hombrecher; Paul Margaretha ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 234 KB

## Abstract The photochemical behaviour of 2โ€Bromoโ€4,4โ€dimethylโ€2โ€cyclohexenone (1) was studied in 2โ€propanol and cyclohexane. In both solvents (nโ€ฯ€\*)โ€excitation followed by intersystem crossing leads to population of a lowโ€lying triplet (T~1~) state, which can be quenched by 1,3โ€cyclohexadiene bu

The photochemical rearrangement of 2,5-d
The photochemical rearrangement of 2,5-diphenyloxazole
โœ Masaharu Kojima; Minoru Maeda ๐Ÿ“‚ Article ๐Ÿ“… 1969 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 133 KB

Recently, it has been reported that the five-membered heterocyclic compounds containing two vicinal hetero-atoms interchanged their positions to 1,3-systems as a common mode of reaction when irradiated with ultraviolet light. Examples include the photo-induced rearrangement of indazoles to benzimid

Thermal and photochemical rearrangements
Thermal and photochemical rearrangements of 4-benzyl-thiopyrimidin-2-ones
โœ Jean-Louis Fourrey; Patrick Jouin ๐Ÿ“‚ Article ๐Ÿ“… 1976 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 224 KB

## Recently some unusually facile Claisen rearrangement reactions' involving heterocyclics related to nucleic acid constituents have been reported. These reactions of potential synthetic value deal with ally1 derivatives of substituted pyrimidines (5-hydroxyuracil 2 and 4-thio-