Phosphine-catalyzed regiospecific (3 + 2) cyclization of 3-nitroindoles with allene esters

Literature Information

Publication Date 2019-03-23
DOI 10.1039/C9OB00432G
Impact Factor 3.876
Authors

Li-Wen Jin, Fei Jiang, Ke-Wei Chen, Bai-Xiang Du, Guang-Jian Mei, Feng Shi


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Abstract

A phosphine-catalyzed regiospecific (3 + 2) cyclization of 3-nitroindoles with allene esters has been established, which constructed indole-fused five-membered rings in good yields (up to 86%). This reaction serves as a powerful method for the construction of indole-fused five-membered rings. In addition, this reaction provides a useful strategy toward settling the challenge of utilizing other 1,3-dipoles or 1,3-dipole surrogates to perform (3 + 2) cyclizations with 3-nitroindoles in different catalytic modes, which will enrich the chemistry of nitroindoles and catalytic asymmetric dearomatization cyclizations.

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Organic & Biomolecular Chemistry

Organic & Biomolecular Chemistry
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Organic & Biomolecular Chemistry (OBC) publishes original and high impact research and reviews in organic chemistry. We welcome research that shows new or significantly improved protocols or methodologies in total synthesis, synthetic methodology or physical and theoretical organic chemistry as well as research that shows a significant advance in the organic chemistry or molecular design aspects of chemical biology, catalysis, supramolecular and macromolecular chemistry, theoretical chemistry, mechanism-oriented physical organic chemistry, medicinal chemistry or natural products. Articles published in the journal should report new work which makes a highly-significant impact in the field. Routine and incremental work is generally not suitable for publication in the journal. More details about key areas of our scope are below. In all cases authors should include in their article clear rationale for why their research has been carried out.

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