Controlled Light-Induced Release of Volatile Aldehydes and Ketones by Photofragmentation of 2-Oxo-(2-phenyl)acetates

Authors

  • Barbara Levrand
  • Andreas Herrmann

DOI:

https://doi.org/10.2533/chimia.2007.661

Keywords:

Delivery systems, Fragrances, Keto esters, Photooxidations, Triggered release

Abstract

The light-induced controlled release of fragrances from photolabile 2-oxo-(2-phenyl)acetates via Norrish Type II photofragmentation was evaluated by irradiation of the precursors in different solvents and on cotton in a typical fabric softener application. The desired photooxidation was found to work efficiently in water-based systems, and it tolerates the presence of oxygen. The formation of a certain amount of alcohol besides the desired aldehyde or ketone was attributed to further reaction of the photochemically released carbonyl compound, rather than to ester hydrolysis in an aqueous environment.

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Published

2007-10-24

How to Cite

[1]
B. Levrand, A. Herrmann, Chimia 2007, 61, 661, DOI: 10.2533/chimia.2007.661.

Issue

Section

Scientific Articles