Synthesis 2022; 54(20): 4461-4471
DOI: 10.1055/a-1811-7948
feature

Assembly of the Hydroxycinnoline Core via Hydrazide-Assisted Rh(III)-Catalyzed C–H Functionalization and Annulation

Suho Kim
,
Heon Kyu Park
,
Ju Young Kang
,
Neeraj Kumar Mishra
,
In Su Kim
This work was supported by National Research Foundation of Korea (NRF) grants funded by the Korea government (MSIT) (nos. 2019R1A4A2001451, 2020R1A2C3005357, and 2020R1I1A1A01052800).


Abstract

The structural modification of phthalazinones and indazolones has emerged as a pivotal topic in catalytic C–H functionalization events. Herein we report the hydrazide-assisted rhodium(III)-catalyzed cross-coupling reactions of N-arylphthalazinones and N-arylindazolones with vinylene carbonate. This method provides direct access to tetracyclic hydroxycinnolines. Complete site-selectivity and functional group compatibility were observed.

Supporting Information



Publikationsverlauf

Eingereicht: 24. Februar 2022

Angenommen nach Revision: 30. März 2022

Accepted Manuscript online:
30. März 2022

Artikel online veröffentlicht:
28. April 2022

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