Helical chirality and enantiotopomerization process of a photochromic furylfulgide
Helical chirality and enantiotopomerization process of a photochromic furylfulgide
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光致变色呋喃酰二酸酐的螺旋手性和对映异构化过程
DOI：
10.1246/cl.1994.225
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发表时间：
1994
影响因子：
1.6
通讯作者：
Y. Kurita
中科院分区：
文献类型：
--
作者：
Y. Yokoyama;T. Iwai;Y. Yokoyama;Y. Kurita
光致变色呋喃酰二酸酐，(E)-2-[1-(2,5-二甲基-3-呋喃基)-2-甲基亚丙基]-3-异亚丙基琥珀酸酐，被证明是手性的。通过变温1H NMR测量观察其对映异构化过程，ΔH≠(obs)为52.9±8.1 kJ mol−1。 AM1 计算显示 ΔH≠(calc) 为 51.5 kJ mol−1。
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.