Unexpected Novel Rearrangement Reaction: Synthesis of Benzo‐Medium‐Ring Anhydride

Wen‐Liang Dong Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China; School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, China

Bao‐Xiang Zhao Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, ChinaCorrespondence[email protected]

Fang Wei Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China

Hua Zuo Department of Chemistry, Changwon National University, Changwon, South Korea

Dong‐Soo Shin Department of Chemistry, Changwon National University, Changwon, South Korea

Abstract

When we attempted to synthesize (E)‐3‐(benzo[d][1,3]dioxol‐5‐ylmethylene)‐4‐(propan‐2‐ylidene)‐dihydrofuran‐2,5‐dione, we found a novel rearrangement and obtained the unexpected compound that is assigned as benzo‐medium‐ring anhydride instead of the expected compound. We described the novel rearrangement and a potential method for the synthesis of benzo‐medium‐ring anhydride derivatives.

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Acknowledgment

This study was supported by the Foundation of the Ministry of Education (Grant No. 104112) and the Natural Science Foundation of Shandong Province (Grant No. Y2005B12).

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Unexpected Novel Rearrangement Reaction: Synthesis of Benzo‐Medium‐Ring Anhydride

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Unexpected Novel Rearrangement Reaction: Synthesis of Benzo‐Medium‐Ring Anhydride

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