PHOTOCHEMISTRY OF N-HETEROCYCLES .3. SYNTHESIS AND PHOTOCHEMISTRY OF SOME NEW DIHYDRO-1,2,4-TRIAZINES AND THEIR QUATERNARY-SALTS

被引：11

作者：

NAGY, J

RAPP, R

ALEXOVICS, M

DOPP, D

NYITRAI, J

ZAHORSZKY, U

ROTTELE, H

机构：

[1] TECH UNIV BUDAPEST,DEPT ORGAN CHEM,H-1521 BUDAPEST,HUNGARY

[2] UNIV DUISBURG,W-4100 DUISBURG 1,GERMANY

[3] UNIV KARLSRUHE,INST ORGAN CHEM,W-7500 KARLSRUHE 1,GERMANY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1993年 / 06期

关键词：

D O I：

10.1039/p19930000661

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Several new dihydro-1,2,4-triazines, 1b, 4, 5, 16 and 19, have been synthesized and their structures unambiguously determined. The existence of 1,2- and 1,4-dihydrotriazines, 20 and 22, described in the literature was ruled out. Irradiation of the aromatic triazines 6 and 15 and the novel quaternary dihydro-1,2,4-triazinium salts 4, 5, 19 furnished new evidence for both the reduction pathways and the mechanism of ring-contraction reactions.

引用

页码：661 / 665

页数：5

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