Journal ArticleDOI
Methyl 2-benzoylamino-3-dimethylaminopropenoate in the synthesis of heterocyclic systems. The synthesis of benzoyl- amino substituted 7H-pyrano[2,3-d]pyrimidine, 1H,6H-pyrano- [2,3-c]pyrazole and 2H-1-benzopyran derivatives†
Reads0
Chats0
TLDR
In this article, a method for the preparation of condensed pyranones is presented. But the method is not suitable for the extraction of condensed Pyranone derivatives, such as barbituric acid derivatives, pyrazolones and resorcinol.About:
This article is published in Journal of Heterocyclic Chemistry.The article was published on 1989-09-01. It has received 28 citations till now. The article focuses on the topics: Barbituric acid & Pyrazolones.read more
Citations
More filters
Journal ArticleDOI
Transformations of isomeric naphthopyranones. The synthesis of substituted β-naphthyl-α,β-dehydro-α-amino acid derivatives
TL;DR: The opening of the pyranone ring in 2H-naphtho[1,2-b]pyran-2-one derivative (1) was described in this article.
Journal ArticleDOI
An Easy Synthesis of Pyranopyrimidines
TL;DR: The one-pot reaction of valerolactone with nitriles in the presence of triflic anhydride affords 2,4-disubstituted pyrano[2,3-d]pyrimidines as mentioned in this paper.
Journal ArticleDOI
The reaction of 2-ethoxycarbonyl-3-isothiocyanatopyridine with α-amino acids. The synthesis of 3-substituted 2-thiooxo-2,3-dihydropyrido[3,2-d]pyrimidin-4(3H)-ones
TL;DR: In this paper, 2-Ethoxycarbonyl-3-isothiocyanatopyridine (2-EBC) was used to give pyrido[3,2-d]pyrimidine derivatives with the nitrogen of the amino acid component incorporated into the fused pyrimidine ring at position 3.
Journal ArticleDOI
Methyl 2‐benzoylamino‐3‐dimethylamonopropenoate in the synthesis of heterocyclic systems. A simple synthesis of amino derivatives of isomeric naphthopyranones and naphthodipyranones
TL;DR: In this article, a simple synthesis of amino derivatives of 3H-naphtho[2,1b]pyran-3-one 5b-d, 8, 11, and 20, 2H,6H-Naphthoe[1,2-b:3,4-b]dipyran 2,6-dione from monohydroxynaphthalenes and tetralones with methyl 2-benzoylamino-3dimethylaminopropenoate in acetic acid is described.
References
More filters
Journal ArticleDOI
Studies on heterocyclic compounds. 6. Synthesis and analgesic and antiinflammatory activities of 3,4-dimethylpyrano[2,3-c]pyrazol-6-one derivatives.
TL;DR: A series of new 1- and 2-substituted 3,4-dimethylpyrano[2,3-c]pyrazol-6-one derivatives and 1-subStituted 1,6-dihydro-4-methyl- 6-oxopyrano-3-acetic acids were synthesized and examined for their analgesic and antiinflammatory activities.
Journal ArticleDOI
Einwirkung von Acetessigester auf Phenylhydrazin
Book ChapterDOI
Recent Progress in Barbituric Acid Chemistry
TL;DR: In this article, the chemistry and pharmacology and physicochemical properties of barbiturates, along with the tautomerism and solvation of the Barbituric acid ring are discussed.