Photochemistry of 4 (3H)-pyrimidin-4-ones. Formation of medium-ring lactams
Y Hirai, T Yamazaki, S Hirokami, M Nagata
Index: Hirai, Yoshiro; Yamazaki, Takao; Hirokami, Shun-ichi; Nagata, Masanori Tetrahedron Letters, 1980 , vol. 21, p. 3067 - 3070
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Citation Number: 6
Abstract
Abstract Upon irradiation, 4 (3H)-pyrimidin-4-one (1) afforded a di-imine derivative (2) which, when hydrolyzed in an acidic methanol solution, gave N-methyl acetoacetamide (3). On the other hand, the fused 4 (3H)-pyrimidin-4-ones,(4) and (5), gave medium-ring lactams (6) and (7), which were hydrolyzed in an acidic methanol solution to give (8) and (9), respectively.
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