911689-63-9

Basic information

• Product Name: 1-(1,3,5-trimethyl-1-pyrazol-4-yl)-2-[2-methyl-5-(3-methoxyphenyl)-1-thien-3-yl]perfluorocyclopentene
• Synonyms: 1-(1,3,5-trimethyl-1-pyrazol-4-yl)-2-[2-methyl-5-(3-methoxyphenyl)-1-thien-3-yl]perfluorocyclopentene
• CAS NO: 911689-63-9
• Molecular Weight: 486.481
• Mol File: 911689-63-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1-(1,3,5-trimethyl-1-pyrazol-4-yl)-2-[2-methyl-5-(3-methoxyphenyl)-1-thien-3-yl]perfluorocyclopentene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(1,3,5-trimethyl-1-pyrazol-4-yl)-2-[2-methyl-5-(3-methoxyphenyl)-1-thien-3-yl]perfluorocyclopentene(911689-63-9)
• EPA Substance Registry System: 1-(1,3,5-trimethyl-1-pyrazol-4-yl)-2-[2-methyl-5-(3-methoxyphenyl)-1-thien-3-yl]perfluorocyclopentene(911689-63-9)

Safety Data

• Hazardous Substances Data: 911689-63-9(Hazardous Substances Data)

Upstream product

• 2398-37-0 3-methoxyphenyl bromide 
• 154566-69-5 3-bromo-2-methylthiophene-5-boronic acid 
• 29421-73-6 3,5-dibromo-2-methylthiophene 
• 554-14-3 2-Methylthiophene 
• 914360-27-3 3-bromo-2-methyl-5-(3-methoxylphenyl)thiophene 
• 911689-65-1 1-(1,3,5-trimethyl-1-pyrazol-4-yl)perfluorocyclopentene 
• 15801-69-1 4-bromo-1,3,5-trimethylpyrazole 
• 559-40-0 octaperfluorocyclopentene 

Relevant articles and documents

Electron-donating methoxyl group position effect on properties of diarylethene derivatives having a pyrazole unit

New types of asymmetrical photochromic diarylethene derivatives having a pyrazole unit, namely 1-[1,3,5-trimethyl-1-pyrazol-4-yl],2-[2-methyl-5-(4- methoxylphenyl)-1-thien-3-yl]perfluorocyclopentene (1a), 1-[1,3,5- trimethylpyrazol-4-yl],2-[2-methyl-5-(3-methoxylphenyl)-1-thien-3-yl] perfluorocyclopentene (2a), 1-[1,3,5-trimethyl-pyrazol-4-yl],2-[2-methyl-5-(2- methoxylphenyl)-1-thien-3-yl]perfluorocyclopentene (3a), and 1-[1,3,5-trimethyl-pyrazol-4-yl],2-[2-methyl-5-phenyl-1-thien-3-yl] perfluorocyclopentene (4a), were synthesized. Their optical and electrochemical properties, such as photochromism, photochromic cyclization-cycloreversion kinetics, and fluorescence and electrochemical properties were investigated in detail. The results show that all of these- compounds have good photochromism, high cycloreversion quantum yield, and relatively strong fluorescence. Their cyclization-cycloreversion processes were determined to be zeroth to first order reactions. The oxidations of diarylethenes 1a-4a were initiated at 0.73, 1.11, 0.79, and 1.03 V, respectively. Furthermore, introduction of the electron-donating methoxyl group at different positions of the terminal phenyl ring was found to strongly influence these optical and electrochemical properties.