✦ LIBER ✦

γgaucheEffects in the 1H and 13C NMR spectra of steroids. II

✍ Scribed by P. E. Hammann; H. Kluge; G. G. Habermehl

Publisher: John Wiley and Sons
Year: 1991
Tongue: English
Weight: 215 KB
Volume: 29
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260290207

No coin nor oath required. For personal study only.

✦ Synopsis

Effects of 17/?-and 'la-substituted 14a-steroids were studied by 'H and ''C NMR spectroscopy. A linear correlation was found between the 'H chemical shift of H-12/? and the ''C chemical shift of C-12 for C-17p substituted steroids and between the chemical shifts of H-14a and C-14 in C-'la-substituted compounds.

📜 SIMILAR VOLUMES

γgauche effects in the 1H and 13C NMR sp

γgauche effects in the 1H and 13C NMR spectra of steroids

✍ P. E. Hammann; G. G. Habermehl; H. Kluge 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 272 KB

1H- and 13C-NMR spectra of fenobam

✍ G. Pellizer; F. Rubessa 📂 Article 📅 1983 🏛 John Wiley and Sons 🌐 English ⚖ 250 KB

0 'H-and 'W-NMR data and spectral assignments are reported for fenobam using noise modulated gated, single frequency off resonance, and single frequency selective proton decoupling techniques. Keyphrases 0 Fenobam-'H-and 13C-NMR spectroscopic analysis 0 'H-and 'T-NMR spectroscopy-analysis of fenoba

Complete Assignment of the 1H and 13C NM

Complete Assignment of the 1H and 13C NMR Spectra of Steroidal Sapogenins: Smilagenin and Sarsasapogenin

✍ Pawan K. Agrawal; Pensri Bunsawansong; Gareth A. Morris 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 257 KB 👁 2 views

Ab initio proton and 13C NMR assignments for a stereoisomeric pair of 5b steroidal sapogenins, smilagenin (1) and sarsasapogenin (2), were accomplished using DEPT, COSY, TOCSY, HETCOR, HMQC, HMQC-TOCSY, HSQC-RELAY, HMBC and selective reverse INEPT techniques ; the 13C NMR assignments for 2 were con-

13C- and 1H-NMR. Spectra of ortho-benzoq

13C- and 1H-NMR. Spectra of ortho-benzoquinones. On the assignment problem in 13C spectra

✍ R. Hollenstein; Wolfgang Von Philipsborn 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 German ⚖ 167 KB 👁 1 views

## Abstract ^13^C‐ and ^1^H‐NMR. spectra of __ortho__‐benzoquinone **1** and its methyl derivatives have been analysed. By means of heteronuclear double resonance experiments it is shown that assignments given in the literature for the olefinic carbon resonances of **1** and of a series of substitu

1H and 13C NMR spectra of benzyl compoun

1H and 13C NMR spectra of benzyl compounds

✍ L. Zetta; G. Gatti 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 221 KB

Proton and carbon-13 spectra of benzyl compounds of the general formula (C,H,CH,),X with a large variety of X substituents have been measured. While a linear relationship between the CH, chemical shift and the substituent electronegativity was found both for lH and lac, large deviations from lineari

Assignment of the 13C NMR spectrum of an

Assignment of the 13C NMR spectrum of anisomycin and the 1H and 13C NMR spectra of deacetylanisomycin

✍ J. W. LeFevre; S. E. Maier; W. Deng 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB

## Abstract The ^13^C NMR spectrum of anisomycin and the ^1^H and ^13^C NMR spectra of deacetylanisomycin were assigned using one‐ and two‐dimensional NMR analysis. The techniques included INEPT, ^1^H^13^C HETCORR and ^1^H‐^1^H COSY spectroscopy.