Yb/TMS-Br promoted homocoupling reactions of aliphatic ketones and α,β-unsaturated ketones

✍ Scribed by Yuki Taniguchi; Manabu Nakahashi; Tatsuhiro Kuno; Masumi Tsuno; Yoshikazu Makioka; Ken Takaki; Yuzo Fujiwara

• Book ID: 104214351
• Publisher: Elsevier Science
• Year: 1994
• Tongue: French
• Weight: 270 KB
• Volume: 35
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)73126-1

✦ Synopsis

Ytterbium metal reacts with trimethytsilyl bromide (TMS-Br) to give divaknt YbBr2. YbBr2 thusformed in situ, causes coupling reactions ofaliplvlrir ketones and a&~ketones

to give bissilylated 1.2-dials and l&-ketones, respectively. in good yields.