Steric Scale of Common Substituents from Rotational Barriers ofN-(o-Substituted aryl)thiazoline-2-thione Atropisomers
نویسندگان
چکیده
منابع مشابه
Rotational barriers of biphenyls having heavy heteroatoms as ortho-substituents: experimental and theoretical determination of steric effects.
The free energies of activation for the aryl-aryl rotation of 17 biphenyl derivatives, bearing a heavy heteroatom (S, Se, Te, P, Si, Sn) as ortho substituent, have been measured by variable temperature NMR. These numbers, so called B values, represent a meaningful measure of the steric hindrance exerted by the selected substituents. DFT computations match quite satisfactorily the experimental b...
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ژورنال
عنوان ژورنال: The Journal of Organic Chemistry
سال: 2017
ISSN: 0022-3263,1520-6904
DOI: 10.1021/acs.joc.7b01698