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http://hdl.handle.net/11375/20198
Title: | The Photochemistry of some Substituted 2-Cyclohexenones and the Excited States Involved |
Authors: | Snyder, Floyd |
Advisor: | McCullough, J. J. |
Department: | Chemistry |
Keywords: | Photochemistry;2-Cyclohexenones;Excited States;cyclopentene |
Publication Date: | Oct-1969 |
Abstract: | <p> The photoadditions of 3-phenyl-2-cyclohexenone to bicyclo [2.2.1] hepta- 2,5-diene, bicyclo [2.2.1] hept-2-ene and cyclopentene have been studied. In all cases cis fused cyclobutane products were obtained. Quenching and sensitization experiments indicated a singlet excited state to be active in photocycloaddition. Phosphorescence and fluorescence emission were observed from 3-phenyl-2-cyclohexenoneo Energy transfer to the lowest triplet of 3-phenyl-2-cyclohexenone was evident from the quenching of Michler's ketone phosphorescence. Two norbornene dimers were detected in the photolysis of 3-phenyl-2-cyclohexenone and norbornene giving evidence for a higher triplet excited state of the enone. The photoaddition of 3-methyl-2-cyclohexenone to cyclopentene was studied for comparison and both cis and trans fused adducts were obtained. In photolyses with bicyclo [2.2.1] hepta-2,5-diene or cyclopentene, 2-phenyl-2-cyclohexenone was unreactive. </p> |
URI: | http://hdl.handle.net/11375/20198 |
Appears in Collections: | Open Access Dissertations and Theses |
Files in This Item:
File | Description | Size | Format | |
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Snyder_Floyd_F_1969Oct_Master.pdf | 4.47 MB | Adobe PDF | View/Open |
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