Regioselective alkylation and olefination of allylic carbanion stabilized by two different heteroatoms: phosphorus and silicon

✍ Scribed by Bum Sung Lee; Jun Mo Gil; Dong Young Oh

• Book ID: 104230244
• Publisher: Elsevier Science
• Year: 2001
• Tongue: French
• Weight: 56 KB
• Volume: 42
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)00170-8

✦ Synopsis

Treatment of allylphosphonate with LiHMDS, followed by successive addition of chlorotrimethylsilane and carbonyl reagent, afforded dienylsilanes in good yields. 3-Substituted dienylsilanes were obtained by alkylation and olefination of allylic carbanion of 3-trimethylsilylallylphosphonates.