Journal ArticleDOI
On the reaction of 5-aminopyrimidine with diazonium salts†‡
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In this paper, the reaction of 5-aminopyrimidine with benzenediazonium chloride, p-methylbenzenedia-onion chloride, and p-bromobenzenediaenzenedienium chloride is described.About:
This article is published in Journal of Heterocyclic Chemistry.The article was published on 1981-12-01. It has received 3 citations till now. The article focuses on the topics: Benzenediazonium chloride & Triazene.read more
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Book ChapterDOI
Ring Transformations of Five-Membered Heterocycles*
TL;DR: In this paper, a review of ring transformations of five-membered heterocycles is presented, where the rearrangements are represented by the generalized pattern 5→6, where W pivotal center is a nitrogen, sulfur, or carbon atom, and the side-chain contains three or four participating atoms.
Journal ArticleDOI
Reactions of potentially tautomeric methyl and methylene derivatives of pyridine and diazines with N-electrophiles (review)
O. A. Zagulyaeva,I. V. Oleinik +1 more
TL;DR: In this article, data on the nitration, nitrosation, azo-coupling, and electrophilic amination of potentially tautomeric methyl and methylene derivatives of a series of pyridines, pyridine derivatives, including pyrazines, was reviewed systematically.
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Journal ArticleDOI
Heterocyclic rearrangements. Part XIV. Attempts to activate ring-opening–ring-closure rearrangements with carbon as the central atom
TL;DR: In this paper, a number of 3-substituted quaternised pyridines and 4-subtituted oxazoles have been prepared and studied, with a view to discovering substituents appropriate for reactions involving opening of the pyridine or oxazole ring with closure onto the substituent to form a new ring at the 2-(pyridine) or 5-(oxazole) position.
Journal ArticleDOI
Reactions of hydrazine and methylhydrazine with uracil-5-carboxaldehyde. Unusual pyrimidine-to-pyrazole conversion
Journal ArticleDOI
Novel pyrimidine rearrangement reaction. A new synthesis of 4-formylimidazoles
Journal ArticleDOI
Ring transformations in reactions of heterocyclic compounds with nucleophiles (X). A novel pyrimidine rearrangement reaction
TL;DR: In this article, a ring interconversion of 5-(1-hydrazonoethyl)-2,4-dimethylpyrimidine into 4-acetyl-3-methylpyrazole azine and 5-[1-(hydroxyimino)ethyl]-2, 4-dimethylamino-pyridine into 5[1]-methylisoxazole is described, which takes place by an attack of the nucleophilic end of the side-chain at position 5 of the pyrimidine ring to C(6).