NbCl3-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes to 1,3-cyclohexadiene derivatives

Yasushi Obora; Keisuke Takeshita; Yasutaka Ishii

doi:10.1039/B820352K

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NbCl₃-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes to 1,3-cyclohexadiene derivatives†

Yasushi Obora,*^a Keisuke Takeshita^a and Yasutaka Ishii*^a

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* Corresponding authors

^a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka, Japan
E-mail: obora@ipcku.kansai-u.ac.jp, ishii@ipcku.kansai-u.ac.jp
Fax: +81-6-6339-4026
Tel: +81-6-6368-0876

Abstract

NbCl₃(DME)-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes was successfully achieved to give 1,4,5-trisubstituted-1,3-cyclohexadiene derivatives in good yields.

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Supplementary files

Characterization data (¹H and ¹³C NMR and MS) and other spectral data (¹H–¹³C HMQC, HMBC and NOESY) of the products PDF (316K)

Article information

DOI: https://doi.org/10.1039/B820352K
Article type: Communication
Submitted: 13 Nov 2008
Accepted: 26 Nov 2008
First published: 08 Dec 2008

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Org. Biomol. Chem., 2009,7, 428-431

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NbCl₃-catalyzed [2+2+2] intermolecular cycloaddition of alkynes and alkenes to 1,3-cyclohexadiene derivatives

Y. Obora, K. Takeshita and Y. Ishii, Org. Biomol. Chem., 2009, 7, 428 DOI: 10.1039/B820352K

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Organic & Biomolecular Chemistry