OXADIAZOLE CONDENSED RING-SYSTEMS .2. SYNTHESIS OF NEW 2-ARYL-1,3,4-OXADIAZOLO[3,2-A]-SYM-TRIAZINE-5,7(6H)-DIONES

被引：3

作者：

HASSAN, AMM ^{[1
]}

BADAWEY, EAM ^{[1
]}

机构：

[1] UNIV ALEXANDRIA,FAC PHARM,DEPT PHARMACEUT CHEM,ALEXANDRIA 21521,EGYPT

来源：

MONATSHEFTE FUR CHEMIE | 1991年 / 122卷 / 1-2期

关键词：

2-AMINO-1,3,4-OXADIAZOLES; ETHOXYCARBONYL ISOCYANATE; 1,3,4-OXADIAZOLO[3,2-A]-S-TRIAZINE-5,7(6H)-DIONES; ISOTHIOCYANATES;

D O I：

10.1007/BF00815163

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The syntheses of 1,3,4-oxadiazolo[3,2-a]-s-triazine-5, 7(6H)-diones 4 through the condensation of 2-amino-5-aryl-1,3,4-oxadiazoles 1 with ethoxycarbonyl isocyanate 2 is described. Methylation of 4b with trimethyl phosphate yielded the N-methyl derivative 5.

引用

页码：43 / 46

页数：4

共 6 条

[1] OXADIAZOLE CONDENSED RING-SYSTEMS .1. SYNTHESIS OF 1,3,4-OXADIAZOLO[3,2-A]PYRIMIDIN-5-ONES AS POSSIBLE ANTIMICROBIAL AGENTS [J].

BADAWEY, EAM ;

HASSAN, AMM ;

SOLIMAN, FSG .

MONATSHEFTE FUR CHEMIE, 1990, 121 (8-9) :665-669

[2] BENZIMIDAZOLE CONDENSED RING-SYSTEMS .4. NEW APPROACHES TO THE SYNTHESIS OF SUBSTITUTED PYRIMIDO[1,6-A]-BENZIMIDAZOLE-1,3(2H,5H)-DIONES [J].

BADAWEY, ESAM ;

RIDA, SM ;

SOLIMAN, FSG ;

KAPPE, T .

JOURNAL OF HETEROCYCLIC CHEMISTRY, 1989, 26 (02) :405-408

[3]

BHATTACHARYA BK, 1983, ACTA CHIM HUNG, V110, P133

[4]

GEHLEN H, 1984, ARCH PHARM, V303, P511

[5]

SINGH H, 1983, INDIAN J CHEM B, V22, P1177

[6]

SINGH H, 1984, ACTA CHIM HUNG, V115, P377

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