Synlett 2022; 33(13): 1282-1286
DOI: 10.1055/s-0041-1738399
letter

Diversity-Oriented Synthesis of Coumarin-Fused Cyclopentanones via a Nucleophilic Phosphine Controlled Cascade Reaction

Qi Huang
,
Junfeng Fu
,
Zhixin Chang
,
Wenhao Gan
,
Yongjiang Wang
,
Xiaoyu Han
We gratefully acknowledge the Basic Public Welfare Research Program of Zhejiang Province (LGJ22B020001) and the Zhejiang University of Science and Technology (2021QN061) for generous financial support.


Abstract

A phosphine-promoted intermolecular annulation reaction of functionalized 3-benzoyl coumarin with alkynone has been disclosed. This reaction was found to be highly dependent on the nucleophilicity of the phosphine. Two classes of coumarin-fused cyclopentanones were selectively afforded in moderate to good yields with excellent diastereoselectivities under the mild reaction conditions.

Supporting Information



Publikationsverlauf

Eingereicht: 24. Februar 2022

Angenommen nach Revision: 11. Mai 2022

Artikel online veröffentlicht:
20. Juni 2022

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