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Proton H NMR Spectroscopy

Generally, the most powerful method for stmctural elucidation of steroids is nuclear magnetic resonance (nmr) spectroscopy. There are several classical reviews on the one-dimensional (1-D) proton H-nmr spectroscopy of steroids (267). C-nmr, a technique used to observe individual carbons, is used for stmcture elucidation of steroids. In addition, C-nmr is used for biosynthesis experiments with C-enriched precursors (268). The availability of higher magnetic field instmments coupled with the arrival of 1-D and two-dimensional (2-D) techniques such as DEPT, COSY, NOESY, 2-D J-resolved, HOHAHA, etc, have provided powerful new tools for the stmctural elucidation of complex natural products including steroids (269). [Pg.448]

Allylic bromination, 339-340 mechanism of, 339-340 Allylic carbocation, electrostatic potential map of, 377, 489 resonance in, 488-489 SN1 reaction and, 376-377 stability of, 488-489 Allylic halide, S l reaction and. 377 S j2 reaction and, 377-378 Allylic protons, ]H NMR spectroscopy and, 457-458... [Pg.1285]

Proton ( H) NMR spectroscopy NMR spectroscopy used to reveal molecular structure near a hydrogen nucleus. [Pg.525]

See other pages where Proton H NMR Spectroscopy is mentioned: [Pg.5]    [Pg.9]    [Pg.52]    [Pg.243]    [Pg.245]    [Pg.247]    [Pg.249]    [Pg.136]    [Pg.435]    [Pg.436]    [Pg.437]    [Pg.438]    [Pg.223]    [Pg.734]    [Pg.123]    [Pg.297]    [Pg.298]    [Pg.299]    [Pg.300]    [Pg.301]    [Pg.302]    [Pg.303]    [Pg.304]    [Pg.305]    [Pg.306]    [Pg.307]    [Pg.308]    [Pg.309]    [Pg.310]    [Pg.311]    [Pg.277]   


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H-NMR spectroscopy

NMR proton

Proton NMR protons

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