𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of the Stereochemistry of Four Spirodiastereoisomers by One- and Two-Dimensional NOE Studies

✍ Scribed by A. Moreno; A. Díaz-Ortiz; E. Díez-Barra; A. de la Hoz; F. Langa; P. Prieto; T. D. W. Claridge


Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
414 KB
Volume
34
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis


The stereochemistries of four cycloadducts obtained by 1,3-dipolar reactions were investigated with one-and twodimensional NMR techniques. Analysis of a series of homonuclear NOE difference spectra and COSY and NOESY spectra recorded in a variety of solvents and at various temperatures allowed the determination of the full stereochemistry of each adduct.


📜 SIMILAR VOLUMES


Determination by 1D NOE studies of the s
✍ S. Sirol; J.-P. Gorrichon; P. Kalck; P. M. Nieto; G. Commenges 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 136 KB 👁 1 views

The structure of a new, optically pure 2-hydroxytetrahydrofuran tricyclic compound resulting from the hydroformylation of (1R)-([)-myrtenol was resolved by one-and two-dimensional 1H and 13C NMR. The conÐgurations of the three new asymmetric centres are discussed on the basis of J(H,H) coupling cons

Assignment of the stereochemistry of spi
✍ W. A. Etzel; W. Gau; W. Krämer; U. Stelzer; J. Weissmüller 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 278 KB 👁 2 views

Spiroxamine is a new powdery mildew fungicide in cereals consisting of four biologically active isomers (two diastereomers, four enantiomers). The four isomers were separated by preparative high-performance liquid chromatography (HPLC) on a chiral stationary phase. At this stage it was not possible

One- and two-dimensional nuclear magneti
✍ Munia Mukherjee; S. K. Chatterjee; A. S. Brar 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 343 KB 👁 2 views

Copolymers containing acrylamide (A) and acrylonitrile (B) units of different compositions were synthesized by free-radical solution polymerization. The reactivity ratios were estimated by the Kelen Tudos and nonlinear error-in-variable methods. The triad sequence distribution in terms of A-and B-ce