Photochemistry of 2-(Trifluoromethyl) cyclohexanone
✍ Scribed by Christoph Semisch; Paul Margaretha
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- German
- Weight
- 226 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The photochemical behaviour of the title compound 1a is compared to that of the non‐fluorinated parent ketone 2‐methylcyclohexanone (1b). Substitution of the CH~3~‐ group on C(2) by a trifluoromethyl group strongly enhances 2H‐ and RH‐ reduction product formation in cyclohexane or 2‐propanol and oxetane formation in the presence of 2‐methylpropene as olefinic component. Under all these conditions 1b exclusively undergoes a‐cleavage, a process observed for 1a only in non‐reducing solvents as benzene or tert‐butyl alcohol.
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Bis(trifluoromethy1) peroxide is readily dissociated by multiple infrared photon excitation at COz laser wavelengths. The primary dissociation product is CF30; approximately 85% of the nascent radicals are further dissociated in the laser field to form CFzO and F. The F atoms then react with the rem
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