作者:Hélène Lebel、Michaël Davi
DOI:10.1002/adsc.200800381
日期:2008.10.6
The olefination of aldehydes to synthesize unsaturated ketones, esters, amides and phosphonates using diazo reagents and triphenylphosphine in the presence of copper(I) iodide as catalyst, is described. Good to excellent E:Z selectivities as well as yields were obtained for a large variety of aliphatic, aromatic and heteroaromatic aldehydes. The reaction showed also an excellent functional group compatibility
描述了在碘化铜(I)存在下使用重氮试剂和三苯基膦将醛烯化以合成不饱和酮,酯,酰胺和膦酸酯。对于多种脂族,芳族和杂芳族醛,均获得了良好的E:Z选择性和良好的收率。该反应还显示出优异的官能团相容性,并且在酮,硝基,胺,醚,缩醛,硫醚和卤化物基团的存在下醛被选择性地反应。与先前报道的昂贵的过渡金属络合物相比,使用成本有效的铜盐作为催化剂是有利的。该方法用于scutifoliamide A的全合成,scutifoliamide A是一种具有抗真菌活性的生物活性化合物。