112440-49-0Relevant articles and documents
Photochromism of diarylethene maleimide derivatives
Yamaguchi, Tadatsugu,Matsuo, Masatsugu,Irie, Masahiro
, p. 1145 - 1148 (2005)
Diarylmaleimide derivatives having an indole ring, N-cyanomethyl-2-[2- methoxy-1-benzothiophen-3-yl]-3-[2-methyl-1-octadecylindol-3-yl]maleimide or N-cyanomethyl-2-[2-ethoxy-1-benzothiophen-3-yl]-3-[2-methyl-1-octadecylindol-3- yl]maleimide, were synthesized in an attempt to shift the photosensitive wavelength longer such that it becomes longer than 450 nm. The derivatives underwent the photocyclization reaction upon irradiation with 450-550 nm light in hexane solution and the photogenerated closed-ring isomers returned to the initial open-ring isomers upon irradiation with light longer than 600 nm.