PHOTO-CHEMICAL REACTIONS OF 4-PYRIMIDONES - STRUCTURES AND PROPERTIES OF THE BETA-LACTAMS FORMED

被引:21
作者
HIROKAMI, S
HIRAI, Y
NAGATA, M
机构
[1] TOYAMA MED & PHARMACEUT UNIV,CHEM LAB,SUGITANI,TOYAMA 93001,JAPAN
[2] TOYAMA MED & PHARMACEUT UNIV,FAC PHARMACEUT SCI,SUGITANI,TOYAMA 93001,JAPAN
[3] TANABE SEIYAKU CO LTD,CHEM RES LAB,TODA,SAITAMA 335,JAPAN
关键词
D O I
10.1021/jo01327a008
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The photochemistry of substituted 4-pyrimidone derivatives 1, 3, 5, and 6 was studied in alcoholic solution. Upon irradiation, the fused 4-pyrimidones 1 and 2, 3, 6-trialkyl-4-pyrimidone 3 gave (aminoalkylidenel-d-alkoxy-.d-lactams 2 and 4, respectively. On the other hand, the substituted 4-pyrimidones 5 and 6 did not afford any products with properties expected of iV-alkyl-2-azetidinone. The structure of 2a was confirmed by X-ray crystallographic analysis. The geometrical isomerization about the double bond of the d-lactams obtained was also discussed. © 1979, American Chemical Society. All rights reserved.
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页码:2083 / 2087
页数:5
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