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The mechanism of the norrish type II reaction of α-keto-acids and esters

✍ Scribed by R.Stephen Davidson; Dean Goodwin; Ph.Fornier de Violet

Publisher
Elsevier Science
Year
1981
Tongue
French
Weight
114 KB
Volume
22
Category
Article
ISSN
0040-4039

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✦ Synopsis

Methyl-a-keto-octanoate undergoes a Type II reaction to give pent-l-ene and photophysical measurements show that this and the Type II reactions of a-ketoacids occur, contrary to previous claims, from the excited singlet state.

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Controlled Release of Perfumery Aldehyde
Controlled Release of Perfumery Aldehydes and Ketones by Norrish Type-II Photofragmentation of α-Keto Esters in Undegassed Solution
✍ Sabine Rochat; Caroline Minardi; Jean-Yves de Saint Laumer; Andreas Herrmann 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 German ⚖ 516 KB

Alkyl or aryl a-keto esters of primary or secondary alcohols decompose upon irradiation at 350 ± 370 nm from the intermediate triplet state into aldehydes or ketones in polar, as well as apolar solvents. The use of these keto esters as delivery systems for the controlled release of perfumery aldehyd