Cu-Catalyzed Selective Mono-N-pyridylation: Direct Access to 2-AminoDMAP/Sulfonamides as Bifunctional Organocatalysts

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2013-02-15
Isik, Murat
Tanyeli, Cihangir
Direct and selective mono-N-pyridylation of trans-(R,R)-cyclohexane-1,2-diamine is described here. Facile preparation of a novel chiral 2-aminoDMAP core catalaphore via Cu catalysis has led to the development of various sulfonamide/2-aminoDMAPs as bifunctional acid/base organocatalysts (most in two steps overall), which have been shown to very effectively promote asymmetric conjugate addition of acetylacetone to trans-beta-nitroolefins with good to excellent yields (87-93%) and enantioselectivites (up to 99%).
JOURNAL OF ORGANIC CHEMISTRY

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Authors' Reply to "Comments on 'Branch-Line Couplers Using Unequal Line Lengths"'
Toker, Canan; Oztne, Mustafa; GÜNALP, NİLGÜN (2018-09-01)
The comments of He et al. [1] pointed out an error in the above-cited paper [2, eq. (4)] , which occurred when copying the manuscript and it does not impair the rest of the paper because the correct formula is used throughout the analysis. So there should be no question about the correctness of the final results and conclusions of the paper [2].
Citation Formats
M. Isik and C. Tanyeli, “Cu-Catalyzed Selective Mono-N-pyridylation: Direct Access to 2-AminoDMAP/Sulfonamides as Bifunctional Organocatalysts,” JOURNAL OF ORGANIC CHEMISTRY, pp. 1604–1611, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38052.