Alkylations of “enolates” generated from amino carbene complexes of chromium

✍ Scribed by William D. Wulff; Benjamin A. Anderson; Lyle D. Isaacs

• Publisher: Elsevier Science
• Year: 1989
• Tongue: French
• Weight: 254 KB
• Volume: 30
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)99322-5

✦ Synopsis

The carbanion generated from the methyl (pyrrolidino) chromium carbene complex 6a reacts with a variety of alkylating reagents to provide good to high yields of monoalkylated products. The alkylation reactions of the amino carbene complex were found to be significantly more efficient than alkoxy carbene complex analogs. Dialkylation was not detected and might be explained by the observed sluggish alkylation of the ethyl (pyrrolidine) carbene complex 6b.