Stereochemistry Determination by Powder X‐Ray Diffraction Analysis and NMR Spectroscopy Residual Dipolar Couplings | Zendy

García Manuela E. | Zendy; Pagola Silvina | Zendy; NavarroVázquez Armando | Zendy; Phillips Damilola D. | Zendy; Gayathri Chakicherla | Zendy; Krakauer Henry | Zendy; Stephens Peter W. | Zendy; Nicotra Viviana E. | Zendy; Gil Roberto R. | Zendy

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Stereochemistry Determination by Powder X‐Ray Diffraction Analysis and NMR Spectroscopy Residual Dipolar Couplings

Author(s) -

García Manuela E.,

Pagola Silvina,

NavarroVázquez Armando,

Phillips Damilola D.,

Gayathri Chakicherla,

Krakauer Henry,

Stephens Peter W.,

Nicotra Viviana E.,

Gil Roberto R.

Publication year - 2009

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.200900760

Subject(s) - chemistry , residual dipolar coupling , nuclear magnetic resonance spectroscopy , spectroscopy , powder diffraction , crystallography , coupling constant , lactol , nuclear magnetic resonance crystallography , x ray crystallography , diffraction , stereochemistry , fluorine 19 nmr , nuclear magnetic resonance , lactone , physics , particle physics , quantum mechanics , optics

A matter of technique : For a new steroidal lactol, jaborosalactol 24 ( 1 ), isolated from Jaborosa parviflora , NMR spectroscopy residual dipolar couplings and powder X‐ray diffraction analysis independently gave the same stereochemistry at C23–C26. Conventional NMR spectroscopic techniques, such as NOE and 3 J coupling‐constant analysis failed to unambiguously determine this stereochemistry.

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