Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Long-range heteronuclear shift

The HMBC spectrum of vasicinone along with the H-NMR assignments are shown. Determine the H/ C long-range heteronuclear shift correlations based on the HMBC experiment, and explain how HMBC correlations are useful in chemical shift assignments of nonprotonated quaternary carbons. [Pg.295]

The HMBC spectrum of vasicinone displays long-range heteronuclear shift correlations between the various H/ C nuclei. These correlations are very helpful to determine the C-NMR chemical shifts of quaternary carbons and allow the interlinking of the different substructures obtained. [Pg.330]

Long-Range Heteronuclear Shift Correlation HMBC... [Pg.215]

LONG-RANGE HETERONUCLEAR SHIFT CORRELATION HMBC AND RELATED EXPERIMENTS... [Pg.218]

Krishnamurthy, V.V. et al., 27,37-HMBC a new long-range heteronuclear shift correlation technique capable of differentiating 2/CH from 3/CH correlations to protonated carbons, J. Magn. Reson., 146, 232, 2000. [Pg.122]

The development of gradient-enhanced heteronuclear shift correlation experiments in the early 1990s heralded a major improvement in the applicability of these experiments for H- N direct and long-range heteronuclear shift correlation... [Pg.412]

Accordion-optimized Long-range Heteronuclear Shift... [Pg.413]

A fundamental consideration of any long-range heteronuclear shift correla-... [Pg.416]

Alkaloids are widely distributed in both terrestrial and marine organisms. The feasibility of performing direct and long-range heteronuclear shift correla-... [Pg.465]

An elegant review on long-range heteronuclear shift correlation at... [Pg.144]

Long-range heteronuclear shift correlation studies involving... [Pg.1]

The available accordion-optimized long-range heteronuclear shift correlation experiments were surveyed in a recent chapter. No novel accordion-optimized methods have been reported, but following the author s initial report on the advantages of using the IMPEACH-MBC sequence for long-range studies, Kline and Cheatham have... [Pg.5]

When these data were projected through the F frequency domain, despite the short acquisition time of 26 min, a sin ratio of 101 1 was obtained, highlighting the considerable advantage of acquiring long-range heteronuclear shift correlation... [Pg.11]

See other pages where Long-range heteronuclear shift is mentioned: [Pg.273]    [Pg.331]    [Pg.218]    [Pg.218]    [Pg.219]    [Pg.294]    [Pg.297]    [Pg.128]    [Pg.133]    [Pg.134]    [Pg.134]    [Pg.134]    [Pg.135]    [Pg.3]    [Pg.413]    [Pg.413]    [Pg.414]    [Pg.416]    [Pg.435]    [Pg.440]    [Pg.104]    [Pg.1]    [Pg.2]    [Pg.2]    [Pg.3]    [Pg.6]    [Pg.12]    [Pg.13]    [Pg.17]    [Pg.17]    [Pg.17]    [Pg.19]   


SEARCH



Heteronuclear long-range shift correlation method

Heteronuclear shift-correlation long-range experiments

Long range

Long-Range Heteronuclear Chemical Shift Correlation - HMBC

Long-range heteronuclear chemical shift

Long-range heteronuclear chemical shift correlation

New Long-Range Heteronuclear Shift Correlation Methods

Shift correlation, heteronuclear long-range

© 2024 chempedia.info