The mechanism of the Ullmann reaction. Detection of an organocopper intermediate.

✍ Scribed by Anita H. Lewin; Theodore Cohen

• Book ID: 104240380
• Publisher: Elsevier Science
• Year: 1965
• Tongue: French
• Weight: 227 KB
• Volume: 6
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)89057-2

✦ Synopsis

We wish to present evidence for an organocopper intermediate in the Ullmann biaryl synthesis (1) and to report results which suggest the possibility of direct preparation of otherwise unstable (2) organocopper compounds by the use of suitable complexing agents (X4).

Although many data are available concerning the scoge and applications of the copper induced crapling of aryl halides, the mai:z mechanistic features remain obscure. Any satisfactory mechaniw wulild