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Photochemical Reactions of 1-Aryl-2(1H)-pyrimidinones in Alcohol

✍ Scribed by Nishio, Takehiko

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
267 KB
Volume
1992
Category
Article
ISSN
0947-3440

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✦ Synopsis

Abstract

Irradiation of the 2(1__H__)‐pyrimidinones 1 in alcohols such as 2‐propanol and ethanol afforded the 1‐(alkoxycarbonylamino)‐3‐(arylimino)‐1‐propenes 4a–c, h and 2‐(alkoxycarbonylamino)‐4‐(arylimino)‐2‐pentenes 4d–g. These photoproducts are formed by trapping the isocyanate intermediates 2, generated initially by the Norrish‐type I cleavage of the ArN—CO bond of the 2(1__H__)‐pyrimidinones, with the alcohol.

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