THE DIRECT SYNTHESIS OF α,β-UNSATURATED CARBONYL COMPOUNDS BY Pd(II) PROMOTED DEHYDROGENATION OF ALDEHYDES AND KETONES
作者:Teruaki Mukaiyama、Masahiro Ohshima、Takashi Nakatsuka
DOI:10.1246/cl.1983.1207
日期:1983.8.5
α,β-Unsaturated aldehydes are prepared by the direct dehydrogenation of the corresponding saturated aldehydes by the coupled use of PdCl2(PhCN)2–AgOSO2CF3 in the presence of N-methylmorpholine in good yields. α,β-Unsaturated ketones are also prepared via the Sn(II) enolate by a one-pot procedure from the corresponding saturated ketones.
α,β-不饱和醛是通过相应的饱和醛直接脱氢制备的,在 N-甲基吗啉存在下,通过耦合使用 PdCl2(PhCN)2–AgOSO2CF3,收率良好。α,β-不饱和酮也可以通过 Sn(II) 烯醇化物通过一锅法从相应的饱和酮制备。