Electrochemical Oxidation of Catechols (=Benzene-1,2-diols) in the Presence of Benzoylacetonitrile: Synthesis of New Derivatives of 5,6-Dihydroxybenzofuran
作者:Davood Nematollahi、Ali Reza Atlasi-Pak、Roya Esmaili
DOI:10.1002/hlca.201200029
日期:2012.9
The electrochemical oxidation of catechol (=benzene‐1,2‐diol; 1a) and some of its derivatives in H2O/MeCN 1 : 1 containing benzoylacetonitrile (=β‐oxobenzenepropanenitrile; 3) as a nucleophile was studied by cyclic voltammetry and controlled‐potential coulometry. The voltammetric data showed that electrochemically generated o‐benzoquinones (=cyclohexa‐3,5‐diene‐1,2‐diones) from catechol (1a) and 3‐methylcatechol
通过循环伏安法研究了邻苯二甲酰基乙腈(= β-氧代苯丙腈; 3)在H 2 O / MeCN 1:1中的邻苯二酚(= 1,2-1,2-二醇; 1a)及其一些衍生物的电化学氧化控制电位库仑法。伏安数据表明,电化学产生Ô -benzoquinones(=环己-3,5-二烯-1,2-二酮)从儿茶酚(1A)和3-甲基儿茶酚(1B)参与迈克尔-addition反应用3以形成相应的5,6-二羟基苯并呋喃-3-腈8(方案1)。在这项工作中,我们报告了一种高效的单罐方法,具有高原子经济性,可在环境条件下在未分隔的电池中合成新的取代的5,6-二羟基苯并呋喃-3-腈。