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The primary purpose of this work was to demonstrate the suitability of circular dichroism (CD) spectroscopy in stereochemical studies of α,β‐unsaturated oximes, with particular emphasis on determination of E and Z geometry of the oxime double bond. As models for this study, O‐phenyl and O‐triphenylmethyl (trityl) oximes of 4‐hydroxy‐2‐methylcyclopent‐2‐en‐1‐one were selected. These model compounds...
The aim of the present work was to test various chiroptical techniques, including in particular the in situ dirhodium methodology, to assign the absolute configuration of 1,2‐ and 1,3‐amino alcohols. As models, we selected mainly compounds that have both an additional strongly absorbing and interfering chromophoric system and application in medicinal chemistry. Determination of the absolute configuration...
Electronic circular dichroism (ECD) and vibrational circular dichroism (VCD) measure the same phenomenon. For this reason, the question may arise as to whether one of these methods may supersede the other. In this work, we explore this issue by discussing the scope of applicability and the limitations of both methods. For a variety of examples with vic-diols, the applicability of one or the other...
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