[3 + 2] Cycloaddition of N-Amino(iso)quinolinium Salts with Vinylsulfonium Salt: Synthesis of Pyrazolo[1,5-a]quinoline and Pyrazolo[5,1-a]isoquinoline Derivatives DOI
Hui Wu, Wenfeng Zhao, Nan Jiang

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

In this study, we reported the utilization of vinylsulfonium salt as a highly efficient dipolarophile, leveraging facile leaving ability its sulfide moiety, to engage in [3 + 2] cycloaddition with N-amino(iso)quinolinium salts. This approach facilitates construction various C1/C2-unsubstituted pyrazolo(iso)quinoline skeletons. The transformation is conducted under catalyst- and external oxidant-free conditions. Furthermore, extended gram-scale reaction demonstrates practical applicability developed protocol.

Language: Английский

[3 + 2] Cycloaddition of N-Amino(iso)quinolinium Salts with Vinylsulfonium Salt: Synthesis of Pyrazolo[1,5-a]quinoline and Pyrazolo[5,1-a]isoquinoline Derivatives DOI
Hui Wu, Wenfeng Zhao, Nan Jiang

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 16, 2025

In this study, we reported the utilization of vinylsulfonium salt as a highly efficient dipolarophile, leveraging facile leaving ability its sulfide moiety, to engage in [3 + 2] cycloaddition with N-amino(iso)quinolinium salts. This approach facilitates construction various C1/C2-unsubstituted pyrazolo(iso)quinoline skeletons. The transformation is conducted under catalyst- and external oxidant-free conditions. Furthermore, extended gram-scale reaction demonstrates practical applicability developed protocol.

Language: Английский

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