Helical Chirality and Enantiotopomerization Process of a Photochromic Furylfulgide
- 1 February 1994
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 23 (2) , 225-226
- https://doi.org/10.1246/cl.1994.225
Abstract
A photochromic furylfulgide, (E)-2-[1-(2,5-dimethyl-3-furyl)-2-methylpropylidene]-3-isopropylidenesuccinic anhydride, was shown to be chiral. Its enantiotopomerization process was observed by variable temperature 1H NMR measurement, and ΔH≠(obs) was 52.9 ± 8.1 kJ mol−1. AM1 calculation showed ΔH≠(calc) to be 51.5 kJ mol−1.Keywords
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