Photoreactions

Oelgemöller, M., and Hoffmann, N. (2017) Photoreactions. In: Wang, Zerong, (ed.) Encyclopedia of Physical Organic Chemistry. John Wiley & Sons, New York, NY, USA, pp. 1-65.

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Abstract

The study of organic photochemical reactions is linked to physical chemistry, particularly to spectroscopy. This intense cooperation between two research domains enables a profound and comprehensive understanding of reaction mechanisms and consequently a facile optimization of the reactions. The Norrish Type II reaction and the competing Yang cyclization are classical photochemical reactions of carbonyl compounds. The photochemical reaction between carbonyl compounds and alkenes is the most versatile method for the synthesis of oxetanes. Photoinduced electron transfer (PET) reactions play a dominant role in the chemistry of life. In contrast to most organic molecules and many inorganic molecules, the ground state of oxygen possesses triplet spin multiplicity. Photooxygenation with singlet oxygen considerably enriches the oxidation methodology in organic synthesis. Furthermore, the simple cheap oxidants air or molecular oxygen is used to perform sophisticated oxidations. Photochemical reactions on laboratory-scales are traditionally performed in batch mode using either immersion well or chamber reactors.

Item ID: 44884
Item Type: Book Chapter (Research - B1)
ISBN: 978-1-118-47045-9
Keywords: carbonyl compounds; continuous flow reactors; Norrish type II reaction; photochemical reaction; photoinduced electron transfer; photooxygenation; singlet oxygen; Yang cyclization
Date Deposited: 04 Aug 2016 00:24
FoR Codes: 03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030503 Organic Chemical Synthesis @ 30%
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030505 Physical Organic Chemistry @ 40%
03 CHEMICAL SCIENCES > 0305 Organic Chemistry > 030504 Organic Green Chemistry @ 30%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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