J ‐IMPEACH‐MBC: a new concatenated NMR experiment for  F  1  scalable,  J ‐resolved HMBC | Zendy

Williamson R. Thomas | Zendy; Marquez Brian L. | Zendy; Gerwick William H. | Zendy; Martin Gary E. | Zendy; Krishnamurthy V. V. | Zendy

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J ‐IMPEACH‐MBC: a new concatenated NMR experiment for F 1 scalable, J ‐resolved HMBC

Author(s) -

Williamson R. Thomas,

Marquez Brian L.,

Gerwick William H.,

Martin Gary E.,

Krishnamurthy V. V.

Publication year - 2001

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.807

Subject(s) - chemistry , heteronuclear molecule , scaling , analytical chemistry (journal) , stereochemistry , nuclear magnetic resonance spectroscopy , chromatography , mathematics , geometry

A new and improved NMR experiment for F 1 scalable, J ‐Resolved HMBC is presented. This experiment, called J ‐IMPEACH‐MBC, utilizes a minimum number of 180° pulses to preserve maximum signal‐to‐noise ratio and provides a variable scaling factor ( N ) that can be used to scale the heteronuclear couplings in F 1 . It should prove to be useful for the determination of relative stereochemistry and other structural problems. In addition, a description of the advantages of the J ‐IMPEACH‐MBC compared with the J ‐Resolved HMBC‐2 is presented. The method is exemplified with strychnine. Copyright © 2001 John Wiley & Sons, Ltd.

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