215 research outputs found
Conformational Studies by Dynamic NMR. Part 62. Stereomutations of Rotamers and of Conformational Enantiomers in 1,2-Diacylbenzenes.
Get PDFConformational Studies by Dynamic NMR. 64. Stereomutations of Atropisomers and of Conformational Enantiomers in Ethers of Hindered Naphthylcarbinols.
Get PDFConformational Studies by Dynamic NMR. 65.1 Interconversion of Stereolabile Meso and Racemic Diastereoisomers of Hindered 1,4-Diacylnaphthalenes.
Get PDFSteric Effects which Determine the Conformational Preferences and Stereodynamic Processes of Aryl Fluorenyl Ketones.
Get PDFThe stereodynamic processes and conformational preferences of two classes of aryl fluorenyl ketones have been investigated by means of dynamic NMR spectroscopy, DFT calculations and X-ray diffraction. When the aryl substituent has two hydrogens in the ortho positions, its rotation is independent of that of the fluorene ring. On the contrary, if the two ortho hydrogens are replaced by the bulkier methyl groups (e.g. mesityl fluorenyl ketones), the motion of the aryl ring interacts with the fluorene, and the two rings rotate in a correlated manner
Conformational Studies by Dynamic NMR.56. Enantiotopomerization and Conformational Analysis of Hindered Aryl Alkyl Ketones Investigated by Dynamic and Solid State NMR.
Get PDFConformational Studies by. Dynamic NMR.33. Possible Applications of the Magic Angle Spinning Technique for Identifying Meso and Racemic Conformers in the Solid State.
Get PDFConformational Studies by Dynamic NMR. 73 Conformational Enantiomers of Cyclohexene Oxide in the Solid State.
Get PDFConformational Studies by Dynamic NMR.52.Structure and Stereomutation of Conformational Enantiomers of 1,8-Diacylnaphthalenes.
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