Synthesis 2018; 50(18): 3715-3722
DOI: 10.1055/s-0037-1610438
paper
© Georg Thieme Verlag Stuttgart · New York

Nucleophilic Phosphine-Promoted Domino Reaction of Dialkyl Acetylenedicarboxylates and 3-Arylamino-1-methyl-1H-pyrrole-2,5-diones

Chang-Zhou Liu
,
Ying Han*
,
Yuan-Yuan Zhang
,
Jing Sun
,
Chao-Guo Yan*
This work was financially supported by the National Natural Science Foundation of China (Grant No. 21572196) and the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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Publication History

Received: 23 January 2018

Accepted after revision: 29 May 2018

Publication Date:
12 July 2018 (online)


Abstract

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-2,5-diones in CH2Cl2 afforded functionalized pyrrolo[3,4-b]pyridine-4-carboxylates in satisfactory yields.

Supporting Information