1,4,-DIACYL-3-ACYLAMINO-5-ARYL-4,5-DIHYDRO-1H-1,2,4-TRIAZOLES - RING-CLOSURE PRODUCTS OF AROMATIC CARBALDEHYDE (DIAMINOMETHYLENE) HYDRAZONES WITH ACYLATING AGENTS

被引：12
作者：
GYORGYDEAK, Z
HOLZER, W
KUNZ, RW
LINDEN, A
机构：
[1] UNIV VIENNA,INST PHARMAZEUT CHEM,A-1090 VIENNA,AUSTRIA
[2] UNIV ZURICH,INST ORGAN CHEM,CH-8057 ZURICH,SWITZERLAND
来源：
MONATSHEFTE FUR CHEMIE | 1995年 / 126卷 / 6-7期
关键词：
1,2,4-TRIAZOLINES; (DIAMINOMETHYLENE)HYDRAZONES; X-RAY ANALYSIS; NMR-SPECTROSCOPY;
D O I：
10.1007/BF00807164
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Treatment of aromatic carbaldehyde (diaminomethylene)hydrazones 1 with hot acetic anhydride or benzoyl chloride affords 1,4-diacyl-3-acylamino-5-aryl-4,5-dihydro-1H-1,2,4-triazoles 2. In contrast, a new type of O,N-acetal with an 1,2,4-triazole substructure (3) is obtained from 4-pyridine-carbaldehyde (diaminomethylene)hydrazone (1i) by using a similar reaction procedure. The structures of all novel compounds were confirmed by spectroscopic data (H-1 and C-13 NMR, MS, IR); some representative compounds were also studied by X-ray analysis.
引用
收藏
页码：733 / 746
页数：14
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