Nucleophilic Phosphine-Promoted Domino Reaction of Dialkyl Acetylenedicarboxylates and 3-Arylamino-1-methyl-1H-pyrrole-2,5-diones
作者:Ying Han、Chao-Guo Yan、Chang-Zhou Liu、Yuan-Yuan Zhang、Jing Sun
DOI:10.1055/s-0037-1610438
日期:2018.9
ates in satisfactory yields. The three-component reaction of triphenylphosphine, dimethyl acetylenedicarboxylate and 3-arylamino-1-methyl-1H-pyrrole-2,5-diones in CH2Cl2 at room temperature resulted in functionalized 3-(triphenyl-λ5-phosphanylidene)succinates in nearly quantitative yields. However, tri(n-butyl)phosphine promoted reaction of dialkyl acetylenedicarboxylates and 3-arylamino-1-methyl-1H-pyrrole-2
摘要 三苯基膦的三组分反应,乙炔二和三芳基氨基-1-甲基- 1 H ^ -吡咯-2,5-二酮在CH 2氯2在室温下导致官能3-(三苯基-λ 5 -phosphanylidene)琥珀酸酯的收率接近定量。然而,三(正丁基)膦在CH 2 Cl 2中促进了乙炔二羧酸二烷基酯与3-芳基氨基-1-甲基-1 H-吡咯-2,5-二酮的反应,提供了官能化的吡咯并[3,4- b ]吡啶- 4-羧酸盐具有令人满意的产率。 三苯基膦的三组分反应,乙炔二和三芳基氨基-1-甲基- 1 H ^ -吡咯-2,5-二酮在CH 2氯2在室温下导致官能3-(三苯基-λ 5 -phosphanylidene)琥珀酸酯的收率接近定量。然而,三(正丁基)膦在CH 2 Cl 2中促进了乙炔二羧酸二烷基酯与3-芳基氨基-1-甲基-1 H-吡咯-2,5-二酮的反应,提供了官能化的吡咯并[3,4- b ]吡啶- 4-羧酸盐具有令人满意的产率。