A Novel and Efficient Method for the Preparation of α-Hydroxyimino Carbonyl Compounds from α,β-Unsaturated Carbonyl Compounds with Butyl Nitrite and Phenylsilane Catalyzed by a Cobalt(II) Complex
作者:Koji Kato、Teruaki Mukaiyama
DOI:10.1246/bcsj.64.2948
日期:1991.10
Various α,β-unsaturated carbonylcompounds, such as α,β-unsaturated esters, α,β-unsaturated ketones, α,β-unsaturated nitriles, and α,β-unsaturated amides, were directly converted to the corresponding a-hydroxyimino carbonylcompounds in high yields on treatment with butyl nitrite and phenylsilane in the presence of a catalytic amount of N,N′-bis(2-ethoxycarbonyl-3-oxobutylidene)ethylenediaminatocobalt(II)
α,β-不饱和酯、α,β-不饱和酮、α,β-不饱和腈、α,β-不饱和酰胺等多种α,β-不饱和羰基化合物直接转化为相应的α-羟基亚氨基羰基在温和条件下,在催化量的 N,N'-双(2-乙氧基羰基-3-氧代丁二烯)乙二氨基钴 (II) 配合物存在下,用亚硝酸丁酯和苯基硅烷处理高产率的化合物。
A Novel Method for the Preparation of 2-Hydroxyiminocarboxylic Acid Esters. Cobalt(II) Catalyzed α-Oximation of α,β-Unsaturated Esters with Butyl Nitrite and Phenylsilane
作者:Koji Kato、Teruaki Mukaiyama
DOI:10.1246/cl.1990.1917
日期:1990.10
Various α,β-unsaturated esters are directly converted to the corresponding 2-hydroxyiminocarboxylic acid esters with butyl nitrite and phenylsilane in high yields by use of N,N′-bis(2-ethoxycarbonyl-3-oxobutylidene)ethylenediaminato cobalt(II) complex as catalyst under mild condition.