## Abstract The photochemical reactions of (__E__)‐α‐ionone (**1**) and its photoproducts have been re‐examined. Upon irradiation with λ 254 and 313 nm a sequence of photo‐reactions takes place: initially (__Z__)‐α‐ionone (**2**) is formed and subsequently (__E__)‐ and (__Z__)‐__retro__‐α‐ionone (*
Photochemistry of dienones. Part 11. Photochemistry of the pivaloyl analogues of (E)-α- and (E)-β-ionone
✍ Scribed by Cornelis P. Visser; Hans van der Wel; Hans Cerfontain
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 511 KB
- Volume
- 102
- Category
- Article
- ISSN
- 0165-0513
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## Abstract Photochemical __E‐Z__ isomerization of 2‐(methoxyimino)‐1‐indanone (1) and its 7‐methyl derivative (2) was studied under conditions of direct irradiation (λ 350 and 300 nm) and triplet photosensitization. The decay ratios __k__~5~/__k__~6~ for triplet photosensitization and direct irrad