676258-36-9

Upstream product

• 156686-75-8 3-bromo-5-(4-methoxyphenyl)-2-methylthiophene 
• 479077-56-0 1-[3-methyl-5-(p-methoxyphenyl)-2-thienyl]perfluorocyclopentene 
• 169030-74-4 1-[5-(4-methoxyphenyl)-2-methylthien-3-yl]-2,3,3,4,4,5,5-heptafluorocyclopentene 
• 184355-40-6 4-methyl-2-(p-methoxyphenyl)thiophene 
• 559-40-0 octaperfluorocyclopentene 

Relevant academic research and scientific papers

Efficient synthesis and photochromic properties of 2,3-position hybrid diarylethene derivatives

An efficient synthetic method was proposed to synthesize some 2,3-position hybrid diarylethene derivatives. In these compounds, one of thiophene rings was attached to the ethylene moiety at 2-position, the other at 3-position. These asymmetric diarylethenes are sensitive at wavelengths in the region of 400 and 500 nm. They can undergo thermally irreversible and fatigue-resistant photochromic reactions in solution, some of them even in the solid state. Substituent effects on their photochromism were examined.