Effects of electron-withdrawing group on the photoisomerization of tetraaryl-4<i>H</i>-thiopyran-1,1-dioxides
作者:Farnaz Jafarpour、Fatemeh Ramezani、Hooshang Pirelahi
DOI:10.1002/hc.20455
日期:2008.9
4,6-triaryl-4H-thiopyran-1,1-dioxides as model compounds under identical experimental conditions using 1H NMR spectroscopy. The results observed are discussed on the basis of a triplet excited state di-π-methane rearrangement. © 2008 Wiley Periodicals, Inc. Heteroatom Chem 19:557–561, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20455
新的砜衍生物 4,4-di (p-trifluoromethylphenyl)-2,6-diphenyl-4H-thiopyran-1, 1-dioxide 和 4-(p-trifluoromethylphenyl)-2,4,6- 的合成和光异构化已经研究了三苯基-4H-噻喃-1,1-二氧化物。光产物的相对摩尔比与2,4,4,6-四苯基-4H-噻喃-1,1-二氧化物以及供电子取代的4-甲基-2,4,6-三芳基- 4H-噻喃-1,1-二氧化物在相同实验条件下使用 1H NMR 光谱作为模型化合物。在三重激发态二-π-甲烷重排的基础上讨论了观察到的结果。© 2008 Wiley Periodicals, Inc. 杂原子化学 19:557–561, 2008; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc