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Photochemistry of α-phenoxy-p-methoxyacetophenone

✍ Scribed by J.C. Netto-Ferreira; J.C. Scaiano


Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
191 KB
Volume
30
Category
Article
ISSN
0040-4039

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✦ Synopsis


The triplet state of the title compound decays by a competition of P-phenyl quenching and P-cleavage leading to CH@C&&DCH~* and phenoxyl radicals. The latter process occurs with a quantum yield of 0.020.

The solution photochemistry

of molecules such as P-phenylpropiophenonez4 (I) and a-phenoxy-


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## 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 (*