The Journal of organic chemistry

Photochemical acetalization of carbonyl compounds in protic media using an in situ generated photocatalyst

HJP de Lijser, NA Rangel

Index: De Lijser, H.J. Peter; Rangel, Natalie Ann Journal of Organic Chemistry, 2004 , vol. 69, # 24 p. 8315 - 8322

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Citation Number: 10

Abstract

Carbonyl compounds are conveniently converted into their corresponding dimethyl acetals in good yields and short reaction times by means of a photochemical reaction in methanol with a catalytic amount of chloranil (2, 3, 5, 6-tetrachloro-1, 4-benzoquinone, CA) as the sensitizer. Using aldehydes gives better results than using ketones, which also tend to form enol ethers as side products. These results are similar to those of simple acid-catalyzed ...