✦ LIBER ✦

Mass spectrometry of heterocyclic compounds. VI—retro-1,3-dipolar cycloaddition and competitive fragmentation reaction of 2,5-diaryl-1,3,4-dioxazoles

✍ Scribed by A. Selva; A. Citterio; E. Pella; R. Tonani

Publisher: John Wiley and Sons
Year: 1974
Tongue: English
Weight: 312 KB
Volume: 9
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210091008

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Mass spectra of some 3,5-diaryl-4-nitroi

Mass spectra of some 3,5-diaryl-4-nitroisoxazoles. Evidence for a retro 1,3-dipolar cycloaddition

✍ Jacques Tuaillon; Joël Vebrel; Bernard Laude; Pierre Guenot 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 204 KB

Mass spectrometry of heterocyclic compou

Mass spectrometry of heterocyclic compounds—II: Electron-impact induced fragmentation of 3,5-diphenyl-1,2,4-oxadiazole

✍ A. Selva; L. F. Zerilli; B. Cavalleri; G. G. Gallo 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 243 KB

Mass spectrometry of heterocyclic compou

Mass spectrometry of heterocyclic compounds—III. Electron-impact-induced fragmentation of 1,2-benzisothiazole and some 3-substituted derivatives

✍ Antonio Selva; Enrico Gaetani 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 405 KB

The arylimines of 2,4-dioxo-1,2,3,4-tetr

The arylimines of 2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbaldehyde: Synthesis and their application in 1,3-dipolar cycloaddition reaction

✍ Dominika Osyda; Radosław Motyka; Krzysztof Z. Walczak 📂 Article 📅 2009 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 108 KB 👁 1 views

## Abstract magnified image A number of aldimines have been obtained in very good yield in reaction of 5‐formyl‐1,3‐dimethyluracil with various substituted anilines in boiling methanol. Selected aldimines were treated with nitrile oxides generated from 4‐chlorobenzaldoxime or 4‐methylbenzaldoxime f

Synthesis and structure characterization

Synthesis and structure characterization of new [1,2,4]triazolo[5,4-d][1,5]benzothiazepine derivatives through 1,3-dipolar cycloaddition reaction

✍ Xiao-Long Wu; Fang-Ming Liu; Ying-Lei Zhou 📂 Article 📅 2010 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 191 KB

## Abstract Reaction of 1,5‐benzothiazepines **3**, obtained from chalcones **2** and __o__‐aminobenzenthiol, with the (phenylhydrazino) chloromethylenecarboxylates **4** in the presence of Et~3~N leads to a series of new [1,2,4]triazolo[5,4‐__d__][1,5]benzothiazepine derivatives **5**. Their struc

Synthesis of heterocyclic Compounds, XXX

Synthesis of heterocyclic Compounds, XXXVII. Preparation of 4,6-Diaryl-1,2-dihydro-2-thioxo-3,5-pyridinedicarbonitriles and Related Compounds

✍ Encinas, María Jesús Rubio ;Seoane, Carlos ;Soto, José L. 📂 Article 📅 1984 🏛 John Wiley and Sons 🌐 English ⚖ 461 KB

## Abstract The reaction of cyanothioacetamide (**1**) with α‐benzoylcinnamonitriles **2** in basic ethanolic solution leads to 4,6‐diaryl‐1,2‐dihydro‐2‐thioxo‐3,5‐pyridinedicarbonitriles **3** together with the disulfides **4**. Treatment of **4** with 2‐mercaptoethanol causes transformation into