593260-84-5

Upstream product

• 104-92-7 1-bromo-4-methoxy-benzene 
• 509083-61-8 1,2-bis[5'-di-n-butoxyboryl-2'-methylthien-3'-yl]cyclopentene 
• 219537-97-0 1,2-bis(5-chloro-2-methylthien-3-yl)cyclopent-1-ene 
• 696-62-8 para-iodoanisole 
• 219537-96-9 1,2-bis(2-methylthien-3-yl)cyclopentene 

Downstream Products

• 1392099-24-9 4-(4-(2-(5-(4-methoxyphenyl)-2-methylthiophen-3-yl)cyclopent-1-en-1-yl)-5-methylthiophen-2-yl)phenol 
• 1033754-72-1 4,4'-(4,4'-(cyclopent-1-ene-1,2-diyl)bis(5-methylthiophene-4,2-diyl))diphenol 

Relevant academic research and scientific papers

Isolation and crystal structure of a dithiophene dication: Controlling covalent connection and disconnection with temperature and phase

A dithienylethene (1o) undergoes a two-electron chemical oxidation to a singlet diradical as an open-isomer (1o2+) in solution, which cyclizes to a closed-form (1c2+) upon cooling. The latter crystallizes out and its structure is ana

Synthesis of symmetrical and nonsymmetrical bisthienylcyclopentenes

Diarylethenes possess unique structural properties, which enabled them to find widespread applications in the field of photochromism. Nowadays, bisthienylcyclopentenes (BTCs) present the most popular subfamily of these compounds, which are widely used as P-type chromophores. This minireview summarises the main strategies for the synthesis of symmetrical and nonsymmetrical BTCs. In addition, attention is drawn to desymmetrisations achieved by monosubstitutions, which is not frequently utilised, although it can be highly advantageous. This is supported with some of the authors' latest results. Copyright

Functionalization of a simple dithienylethene via palladium-catalyzed regioselective direct arylation

The direct arylation on the thienyl groups of a diarylethene with various aryl iodides efficiently provided arylated dithienylethenes under palladium catalysis. Unsymmetrically substituted dithienylethenes were also synthesized by this protocol. This proc

Optic and proton dual-control of the fluorescence of Rhodamine based on photochromic diarylethene: mimicking the performance of an integrated logic gate

A proton and optic dual-responsive fluorescence switch dyad which contains Rhodamine and photochromic diarylethene has been designed and an integrated logic circuit at the molecular level has been proposed.

Photochromic properties of perhydro- and perfluorodithienylcyclopentene molecular switches

Various substituted phenylthienyl perhydro- and perfluorocyclopentenes have been synthesized in order to compare their spectroscopic and photochromic properties. The difference in the electron densities of the central cyclopentene moieties in the perhydrocyclopentene and perfluorocyclopentene molecular switches has only a small effect on the absorption maxima of the electronic spectra, but causes some subtle changes in substituent and solvatochromic effects. The photochromic behaviour is remarkably similar, and both type of switches combine excellent quantum yields (0.6) with high degrees of photoconversion (> 0.85). The main difference is the lower photochemical and thermal stability of the perhydrocyclopentene molecular switches. It is concluded that in most studies the perhydrocyclopentenes are an excellent alternative for the perfluorocyclopentenes, while the perfluorocyclopentenes might be better suited for applications such as data storage, which depend critically on fatigue resistance and thermal stability. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.