Title

The solution photochemistry of benzaldehyde in benzene, ethanol, and 1-hexyne

Abstract

The photoreactions of benzaldehyde in benzene, ethanol, and 1-hexyne have been studied. Irradiation of benzaldehyde in benzene produces benzoin (I), hydrobenzoin (II), and deoxybenzoin (III). Irradiation of benzoin (I) in this solvent results in benzaldehyde formation as well as small amounts of (II) and (III). The ethanol irradiation of benzaldehyde resulted, predominantly, in the formation of (II) with (I) formed in small amounts. The photolysis of benzaldehyde in 1-hexyne produces (I), (II), (III) cis-2-heptenophenone (VII), trans-2-heptenophenone (VIII), heptanophenone (IX), and 2-(n-butyl)- 1,4-diphenyl-1,4-butanedione (X). Mechanistic pathways for the formation of these photoproducts are discussed. Separation and characterization of cis- and trans-2- heptenophenone was accomplished. The photoisomerization of these two isomers results in the formation of cis-2-heptenophenone in 94 per cent yield.

Degree

PhD

College and Department

Chemistry and Biochemistry

Rights

http://lib.byu.edu/about/copyright/

Date Submitted

1974-04-01

Document Type

Dissertation

Handle

http://hdl.lib.byu.edu/1877/Letd599

Keywords

Aldehydes, Botanical chemistry

Language

English

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