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

1994; Elsevier BV; Volume: 35; Issue: 24 Linguagem: Inglês

10.1016/s0040-4039(00)73126-1

1873-3581

Yuki Taniguchi, Manabu Nakahashi, Tatsuhiro Kuno, Masumi Tsuno, Yoshikazu Makioka, Ken Takaki, Yuzo Fujiwara,

Catalytic Cross-Coupling Reactions

Ytterbium metal reacts with trimethylsilyl bromide (TMS-Br) to give divalent YbBr2. YbBr2 thus formed in situ, causes coupling reactions of aliphatic ketones and α,β-unsaturated ketones to give bissilylated 1,2-diols and 1,6-ketones, respectively, in good yields.