Dimerization of Azaallyl, Diazaallyl, and Oxaazaallyl Groups by Way of Copper-containing Intermediates

✍ Scribed by Prof. Dr. Th. Kauffmann; G. Beissner; E. Köppelmann; Dipl.-Chem. D. Kuhlmann; Dipl.-Chem. A. Schott; H. Schrecken

• Publisher: John Wiley and Sons
• Year: 1968
• Tongue: English
• Weight: 237 KB
• Volume: 7
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.196801312

✦ Synopsis

with a coupling constant of 16 Hz. The signal of the phenyl protons ortho to the imino nitrogen atom is a multiplet centered at 7 = 2.4 (relative intensity 2); and that of the remaining aromatic protons is a multiplet centered at T ~ 2.8 (relative intensity 8). Analogous substances provide an indication of the shift of signals of the CH2 protons on the four-membered ring to lower field owing to the neighboring nitrogen atom. Further, we also derive structure ( I ) from the mass spectrum, specifically from the appearance of the ion M-42 and of a fragment at m ' e 42 (H~C-N-CHZ). The compound is found to have molecular weight 234. The UV spectrum (in alcohol) includes a n absorption band at 244 nm