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1,3-Dipolar cycloadditions of 2-ethoxy- and 2-(ethylthio)-1-azetines with nitrile oxides and nitrile ylides

✍ Scribed by Abdul-Basset N. Luheshi; Robert K. Smalley; Peter D. Kennewell; Robert Westwood

Publisher
Elsevier Science
Year
1990
Tongue
French
Weight
194 KB
Volume
31
Category
Article
ISSN
0040-4039

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πŸ“œ SIMILAR VOLUMES

1,3-Dipolar cycloadditions of 2-ethoxy-
1,3-Dipolar cycloadditions of 2-ethoxy- and 2-(ethylthio)-1-azetines with nitrilimines
✍ Abdul-Basset N. Luheshi; Robert K. Smalley; P.D. Kennewell; R. Westwood πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 French βš– 198 KB

I,3-Dipolar q&additions ofdiphenylnim%nines with 2&O-and2EtS-temmzethyi-I-azetines (la,b) are accompanied by ring-opening and loss of EtXH (LX = 0 or S) to give 1,2,4-triasoies (3), whereas with N-(4-nitrophenyl) nimXmines the qected cycloadducts andlor ring-opened products are formed.

The 1,3-Dipolar Cycloadditions of Nitril
The 1,3-Dipolar Cycloadditions of Nitrile Oxides and Nitrile Imines to Alkyl Dicyanoacetates
✍ Richard Neidlein; Zhihua Sui πŸ“‚ Article πŸ“… 1991 πŸ› John Wiley and Sons 🌐 German βš– 561 KB

## Abstract The readily available alkyl dicyanoacetates 1 reacted with the 1,3‐dipolar reagents arenecarbonitrile oxides 2β€² and arenecarbonitrile imines 5β€² to afford 1,2,4‐oxadiazol and 1,2,4‐triazol derivatives. The arenecarbonitrile oxides 2β€² with electron‐donating groups on the arene ring gave p