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Photochemical Reactions of Caffeine with Aliphatic Aldehydes

✍ Scribed by Erndt, Aleksander ;Fiedorowicz, Maciej ;Kostuch, Andrzej ;Para, Andrzej

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
464 KB
Volume
1993
Category
Article
ISSN
0947-3440

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✦ Synopsis

Abstract

Photochemical reactions of caffeine with several aliphatic aldehydes are performed. In the reactions with ethanal, propanal and butanal stable 8‐acyl‐8,9‐dihydrocaffeines 2 and 3 together with unreduced 8‐acylcaffeines 4 and 8‐(α‐hydroxyalkyl)caffeines 6 are produced. Under similar conditions, the reactions of 2‐methylpropanal, 2‐methylbutanal and 2,2‐dimethylbutanal resulted in the formation of the corresponding 8‐alkylcaffeines 7.

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