电生成的乙腈阴离子/四丁基铵阳离子:合成新型铬诺[3',4':5,6]吡喃并[2,3- d ]嘧啶的有效催化体系
摘要:
描述了一种有效且方便的合成新型铬诺[3',4':5,6]吡喃并[2,3- d ]嘧啶的方法,该方法以乙腈的电生成阴离子为基础,在氟化四丁基铵的情况下作为有效载体一锅,三组分巴比妥酸,芳族醛或靛红与4-羟基香豆素的缩合反应中的电解质。该反应在室温下以恒定电流在包含铁电极作为阴极和Pt电极作为阳极的不分隔电池中进行。
Electrogenerated acetonitrile anions/tetrabutylammonium cations: an effective catalytic system for the synthesis of novel chromeno[3′,4′:5,6]pyrano[2,3-d]pyrimidines
synthesis of novel chromeno[3′,4′:5,6]pyrano[2,3-d]pyrimidines is described, using the electrogenerated anion of acetonitrile as the base in the presence of tetrabutylammonium fluoride as an effective supporting electrolyte in a one-pot, three-component condensation of barbituric acid, an aromatic aldehyde or isatin, and 4-hydroxycoumarin. The reaction is carried out in an undivided cell containing
描述了一种有效且方便的合成新型铬诺[3',4':5,6]吡喃并[2,3- d ]嘧啶的方法,该方法以乙腈的电生成阴离子为基础,在氟化四丁基铵的情况下作为有效载体一锅,三组分巴比妥酸,芳族醛或靛红与4-羟基香豆素的缩合反应中的电解质。该反应在室温下以恒定电流在包含铁电极作为阴极和Pt电极作为阳极的不分隔电池中进行。