Volume 126, Issue 42 pp. 11520-11523
Zuschrift

Rhodium(III)-Catalyzed [3+2] Annulation of 5-Aryl-2,3-dihydro-1H-pyrroles with Internal Alkynes through C(sp2)H/Alkene Functionalization

Ming-Bo Zhou

Ming-Bo Zhou

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Rui Pi

Rui Pi

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Ming Hu

Ming Hu

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Yuan Yang

Yuan Yang

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Ren-Jie Song

Ren-Jie Song

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Dr. Yuanzhi Xia

Corresponding Author

Dr. Yuanzhi Xia

College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035 (China)

Yuanzhi Xia, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035 (China)

Jin-Heng Li, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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Prof. Dr. Jin-Heng Li

Corresponding Author

Prof. Dr. Jin-Heng Li

State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000 (China)

Yuanzhi Xia, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035 (China)

Jin-Heng Li, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082 (China)

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First published: 01 September 2014
Citations: 25

We thank the NSFC (No. 21172060) and HPNSFC (No. 13JJ2018) for financial support.

Abstract

This study describes a new rhodium(III)-catalyzed [3+2] annulation of 5-aryl-2,3-dihydro-1H-pyrroles with internal alkynes using a Cu(OAc)2 oxidant for building a spirocyclic ring system, which includes the functionalization of an aryl C(sp2)H bond and addition/protonolysis of an alkene CC bond. This method is applicable to a wide range of 5-aryl-2,3-dihydro-1H-pyrroles and internal alkynes, and results in the assembly of the spiro[indene-1,2′-pyrrolidine] architectures in good yields with excellent regioselectivities.

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