Anionic 3 + 2 Cycloaddition of a 1,2-Diazaallyllithium Compound

✍ Scribed by Prof. Dr. Thomas Kauffmann; Dr. Dieter Berger; Björn Scheerer; Annegret Woltermann

• Publisher: John Wiley and Sons
• Year: 1970
• Tongue: English
• Weight: 195 KB
• Volume: 9
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.197009611

✦ Synopsis

The energy barrier to be overcome in anionic 3 + 2 cycloadditions according to (A) (21 and the corresponding cyclo--~~~' 1 ~~H 5 eliminations according to (8) (X = 0, S)[31 should be low since the symmetry of the ~i orbitals is conserved [4+51. The direction of reaction is dictated by the arrangement o f the electronegative hetero atoms: The reaction that occurs is that in which the negative charge is transferred from the H I,i c&35 -N = N -