Journal ArticleDOI
Das Verhalten einiger 1.2.4‐Triazin‐Derivate gegenüber Alkylmagnesiumhalogeniden, Diazomethan und in der Mannich‐Reaktion
TLDR
The Mannich reaction on 3-oxo-5,6-diphenyl-2,3-dihydro-1,2,4-triazine (1) and on 3,5-dioxo-6-phenyl, 2,3,4,5,tetrahydro, 1.4, and 3.4 triazin (4) using piperidine or morpholine together with formaldehyde, leads to the formation of 5a, b and 6a, respectively, b, respectively.About:
This article is published in European Journal of Organic Chemistry.The article was published on 1970-01-01. It has received 11 citations till now. The article focuses on the topics: Mannich reaction & Diazomethane.read more
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Book ChapterDOI
Behavior of Monocyclic 1,2,4-Triazines in Reactions with C-, N-, O-, and S-Nucleophiles
TL;DR: In this article, the behavior of monocyclic 1,2,4-triazines in reactions with C-, N-, 0-, and S-nucleophiles is investigated.
Journal ArticleDOI
Studies on 1,2,4‐triazine derivatives. III. The Behaviour of some Derivatives of 1,2,4‐Triazine toward diazomethane, amines, ethyl monobromoacetate and tetra‐O‐acetyl‐α‐D‐glucopyranosyl bromide
TL;DR: The reaction of diazomethane with 6-phenyl-3-thioxo-5-oxo-2,3,4,5-tetrahydro-1,2,4-triazine 3a and 3-methyl-mercapto-4,6-diphenyl-1.
Book ChapterDOI
Reactions of annular nitrogens of azines with electrophiles
M. R. Grimmett,B. R. T. Keene +1 more
TL;DR: This chapter highlights the reactivities of particular ring nitrogen atoms with proton acids, as these reactivities are frequently related to trends observed in N-alkylation, N-acylation, and N-oxidation.
Journal ArticleDOI
Condensed 1,2,4-Triazines I: Behaviour of Phenanthro[9,10-e]-1,2,4-triazine Derivatives Towards Alkylating and Reducing Agends, Grignard Reagents, and Amines
TL;DR: Alkylation of 3-hydroxy-phenanthro[9,10-e]1,2,4-triazine (1a) yielded the N(2)-alkyl derivatives 2a−2b; alkylation OF the 3-mercapto analogue 1b yielded the S-alkyl derivative 1f−1i as discussed by the authors.
References
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Journal ArticleDOI
Studies in the triazine series including a new synthesis of 1:2:4-triazines
TL;DR: In this paper, the mono-aroylhydrazones of benzil are cyclised by ammonium acetate in hot acetic acid to tri-substituted 1:2:4-triazines.