Die Reaktion von 4,6-Dinitroisophthalaldehyd und 4,6-Dinitroisophthalonitril mit Pyridin

✍ Scribed by Jean-Marie Adam; Peter Hindermann; Tammo Winkler

• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: German
• Weight: 376 KB
• Volume: 61
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.19780610525

✦ Synopsis

The reaction of 4,6‐dinitroisophthalaldehyde and 4,6‐dinitroisophthalonitrile with pyridine

4, 6‐Dinitroisophthalaldehyde (4) gives on reaction with pyridine 4,6‐diformyl‐3‐(1′‐pyridinio)‐1‐phenolate (5), whereas 4,6‐dinitroisophthalonitrile (7) gives under the same conditions one main product: 3‐(1′)‐pyridinio‐4, 6‐dicyano‐1‐phenolate (10) and two side products: 2‐(1′‐pyridinio)‐4, 6‐dicyano‐3‐nitro‐1‐phenolate (11) and 4, 6‐dicyano‐3‐nitro‐1‐phenol (12). The new structures were elucidated by ^1^H‐NMR. and ^13^C‐NMR. spectroscopy.