Photochemistry of Atropisomers: Non-biaryl Atropisomers for Stereospecific Phototransformations
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چکیده
منابع مشابه
The isolation and photochemistry of individual atropisomers of photochromic diarylethenes.
All three atropisomers of photochromic diarylethenes were isolated for the first time and the stereospecific photochemical switching process studied by UV-vis and CD spectroscopy.
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Atropisomeric biaryl aldehydes undergo diastereoselective condensation with (-)-ephedrine and with a proline-derived diamine, with selectivity highly dependent on solvent, temperature and reaction conditions. Levels of thermodynamic control up to 5:1 may be obtained by heating the diamine with the aldehyde in a sealed tube. Alternatively, crystallisation-induced dynamic transformation allows is...
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 2014
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.140819