Volume 130, Issue 19 pp. 5580-5584
Zuschrift

Conjugated Dienyne-Imides as Robust Precursors of 1-Azatrienes for 6π Electrocyclizations to Furo[2,3-b]dihydropyridine Cores

Yanjun Wan

Yanjun Wan

Department of Chemistry, Zhejiang University, Hangzhou, 310027 China

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Dr. Xuchun Zheng

Dr. Xuchun Zheng

Department of Chemistry, Zhejiang University, Hangzhou, 310027 China

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Prof. Dr. Cheng Ma

Corresponding Author

Prof. Dr. Cheng Ma

Department of Chemistry, Zhejiang University, Hangzhou, 310027 China

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First published: 13 March 2018
Citations: 4

Abstract

A novel strategy to generate functionalized 1-azatriene intermediates for 6π electrocyclizations was developed by using readily accessible dienyne-imides and various terminal olefins under PdII catalysis. Taking advantage of the sequential cooperation between preloaded and incorporated functional handles at 1,3-dien-5-yne skeletons, this method not only enables the selective generation of putative 1-azatrienes but significantly accelerates their thermal 6π-electrocyclic ring-closure processes to a series of highly substituted furo[2,3-b]dihydropyridine derivatives in good yields.

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