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- W2041722198 abstract "The synthesis of 2-unsubstituted indoles 3 from electron-poor ortho-haloanilines 1 and aldehydes 2 is described. The reaction is tolerant of a range of functional groups and substitution patterns. However, low yields are obtained when ortho-substituted anilines are used. Both chloro- and bromoanilines may be used with equal efficacy. Attempted reaction of electron-rich or electron-neutral o-haloanilines proved moderately effective, but inferior to those previously reported by the authors using a Pd(II)/XPhos system (Y. Jia, J. Zhu J. Org. Chem. 2006, 71, 7826). The reaction was also extended to the synthesis of a variety of azaindoles 5 from o-chloroaminopyridines 4, although higher temperatures are required for efficient conversion. In all cases, the major side product is the hydrodehalogenated aniline resulting from a reductive process." @default.
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- W2041722198 date "2009-02-19" @default.
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- W2041722198 title "Pd-Catalyzed Synthesis of (Aza)Indoles fromo-Haloanilines and Aldehydes" @default.
- W2041722198 doi "https://doi.org/10.1055/s-0028-1087791" @default.
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