The reaction of carbonyl-stabilized sulfur ylides with nitrile imines; a facile preparation of pyrazoles

✍ Scribed by Yoshiyuki Hayashi; Ryohei Oda

• Publisher: Elsevier Science
• Year: 1969
• Tongue: French
• Weight: 192 KB
• Volume: 10
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)97679-8

✦ Synopsis

Recent publications concerned with resonance-stabilized sulfonlum ylldes have covered their preparation, but relatively few of their chemical reactions have been described. l,'j-Dipoles are useful starting materials for the synthesis of heterocycles.

In a recent note'), the result of the reaction between nltrlle lmlne and dlmethyloxosulFonlum methyllde was reported. The latter yllde was shown to cause