An oxazolo[3,2-b]indazole route to 1H-indazolones.

Org Lett

Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, USA.

Published: July 2009

The novel heterocycle 2,3-dihydrooxazolo[3,2-b]indazole has been synthesized and utilized to provide easy access to 1H-indazolones, particularly the previously unreported 2-(2-alkoxyethyl)-1H-indazol-3(2H)-ones. Mechanistic as well as optimization and reaction scope studies are reported.

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http://dx.doi.org/10.1021/ol900891sDOI Listing

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The novel heterocycle 2,3-dihydrooxazolo[3,2-b]indazole has been synthesized and utilized to provide easy access to 1H-indazolones, particularly the previously unreported 2-(2-alkoxyethyl)-1H-indazol-3(2H)-ones. Mechanistic as well as optimization and reaction scope studies are reported.

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