1J CH NMR Profile: Identification of Key Structural Features and Functionalities by Visual Observation and Direct Measurement of One-Bond Proton-Carbon Coupling Constants

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Title:

1J CH NMR Profile: Identification of Key Structural Features and Functionalities by Visual Observation and Direct Measurement of One-Bond Proton-Carbon Coupling Constants

Authors: Núria Marcó, Alexandre A. Souz, Pau Nolis , Carlos Cobas, Roberto R. Gil, and Teodor Parella
Date: 9 Jan 2017
Reference:

J. Org. Chem.201782 (4), pp 2040–2044

DOI: 10.1021/acs.joc.6b02873
Download link: https://pubs.acs.org/doi/abs/10.1021/acs.joc.6b02873

 

ABSTRACT

A user-friendly NMR interface for the visual and accurate determination of experimental one-bond proton-carbon coupling constants (1JCH) in small molecules is presented. This intuitive 1JCH profile correlates directly to δ(1H), and 1JCH facilitates the rapid identification and assignment of 1H signals belonging to key structural elements and functional groups. Illustrative examples are provided for some target molecules, including terminal alkynes, strained rings, electronegative substituents, or lone-pair-bearing heteronuclei.

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Enrique Sánchez

Scientific Content Editor in Mestrelab Research S.L. Read his profile here.

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