钝化立体化学结果 a partir des cis-et trans-phenyl-5 diazo-5 pentenes, trans-diphenyl-1,4 dizo-4 butene-1 et cis-methyl-3 aryl-6 diazo-6 hexenes-3 montrent que les 反应 de cycloaddition-1,1 和retrocycloaddition-1,1 sont 立体选择性 avec 保留 de configuration total。分析 芳基-5 重氮-5 甲基-2 戊烯-2 反应电影
Investigation of Bicyclic Thioketones as Triggers for Liquid Crystal Optical Switches
作者:Rochelle Fisher Bradford、Gary B. Schuster
DOI:10.1021/jo0264675
日期:2003.2.1
The axially chiral bicyclic thioketones 11 and 15 were prepared and investigated for suitability as chiroptical triggers in a liquidcrystal optical switch. Irradiation of partially resolved 15 with unpolarized light leads to its conversion to the racemic form (photoracemization). However, irradiation of racemic thioketones 11 and 15 with circularlypolarizedlight does not lead to detectable photoresolution