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Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton

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Abstract

Regioselective ring-opening cyclization of cyclohexane-1,3-dione-2-spirocyclopropanes with stabilized sulfonium ylides provided 2,3-trans-disubstituted 2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-ones in high yields without the formation of any isomers. The obtained product was readily converted into highly substituted chromane.

Graphical abstract: Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton

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Publication details

The article was received on 18 Apr 2019, accepted on 13 May 2019 and first published on 14 May 2019


Article type: Communication
DOI: 10.1039/C9CC03023A
Chem. Commun., 2019, Advance Article

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    Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton

    H. Nambu, Y. Onuki, N. Ono, K. Tsuge and T. Yakura, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC03023A

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