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A Comparison of Chemical and Photochemically Induced Reduction of Some 2(4),5-Dihydro-1,2,4-triazines and Aromatic 1,2,4-Triazines

✍ Scribed by József Nagy; Anikó Horváth; Áron Szöllösy; József Nyitrai

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
212 KB
Volume
1999
Category
Article
ISSN
1434-193X

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✦ Synopsis

Chemical reduction (Zn/AcOH) of the arene 1 and of 2(4),5-have been compared. The first example of a triaryl-1,4dihydrotriazine has been prepared. Some further evidence dihydro-1,2,4-triazine 7 has been reinvestigated, resulting in the amendment of literature data concerning this reaction.

is presented that supports the proposed mechanism of the photochemically induced reduction and ring contraction of Chemical, electrochemical, and photochemically induced reductions and ring contractions of 1,2,4-triazine derivatives 1,2,4-triazines.

a protonated than on a non-protonated CϭN bond, and Budapest, hence only the N-ethylimidazole is formed in the reaction H-

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