340265-92-1

Upstream product

• 141-97-9 ethyl acetoacetate 
• 555-16-8 4-nitrobenzaldehdye 

Downstream Products

• 92289-14-0 3-(4-Nitro-phenyl)-pentanedioic acid 
• 1616787-08-6 3-(4-Nitro-phenyl)-pentanedioyl dichloride 
• 1616787-09-7 1,5-bis(2,5-dimethylthiophen-3-yl)-3-(4-nitrophenyl)pentane-1,5-dione 
• 1616787-10-0 3-(4-aminophenyl)-1,5-bis(2,5-dimethylthiophen-3-yl)pentane-1,5-dione 
• 1616787-11-1 3-(4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)phenyl)-1,5-bis(2,5-dimethylthiophen-3-yl)pentane-1,5-dione 
• 1616787-07-5 1-(4-[3,4-bis(2,5-dimethyl-3-thienyl)cyclopent-3-en-1-yl]phenyl)-2,5-di(2-thienyl)-1H-pyrrole 
• 1616787-12-2 C₃₅H₃₁NS₄ 

Relevant academic research and scientific papers

Design, synthesis, photochromism and electrochemistry of a novel material with pendant photochromic units

In the present work, the synthesis, photochromism and electrochemistry of a novel material 1, 1-(4-[3,4-bis(2,5-dimethyl-3-thienyl)cyclopent-3-en-1-yl] phenyl)-2,5-di-2-thienyl-1H-pyrrole, with pendant dithienylethene (DTE) photochromic units are described. It should be noted that the system 1 can be reversibly and efficiently switched between open (1o) and closed (1c) states by light in both solution and in the solid poly(methyl methacrylate) matrix. It is also noteworthy that the two isomers (1o and 1c) of this novel system 1 can be smoothly polymerized on ITO by electrochemical means. Surprisingly, the DTE unit in 1 does not retain its photochemical switching properties after immobilization onto ITO. The morphology of the polymer film was investigated by AFM analysis. Furthermore, it was found that the polymer exhibited remarkable electrochromic features that can be switched from green in the neutral state to violet state under applied external potentials without disturbing the photochromic units.

One-Pot Three-Component Synthesis of Hantzsch 1,4-Dihydropyridines Promoted by Dimethyl Phosphate Ionic Liquids

A one-pot three-component reaction of ethyl acetoacetate, AcONH4, and different aldehydes has been successfully performed in the presence of ionic liquids (ILs) possessing a (MeO)2PO2- counterion. The impact of electronic and steric effects of the substituents of aromatic aldehydes, as well as the influence of different anions of ILs on the product yield, have been investigated. The application of dimethyl phosphate ILs in the synthesis of Hantzsch 1,4-dihydropyridines presents a simple method for obtaining structurally diverse products in moderate to high yields without using any additional catalyst.

Design, synthesis, photochromism and electrochemistry of a novel material with pendant photochromic units

In the present work, the synthesis, photochromism and electrochemistry of a novel material 1, 1-(4-[3,4-bis(2,5-dimethyl-3-thienyl)cyclopent-3-en-1-yl]phenyl)-2,5-di-2-thienyl-1H-pyrrole, with pendant dithienylethene (DTE) photochromic units are described. It should be noted that the system 1 can be reversibly and efficiently switched between open (1o) and closed (1c) states by light in both solution and in the solid poly(methyl methacrylate) matrix. It is also noteworthy that the two isomers (1o and 1c) of this novel system 1 can be smoothly polymerized on ITO by electrochemical means. Surprisingly, the DTE unit in 1 does not retain its photochemical switching properties after immobilization onto ITO. The morphology of the polymer film was investigated by AFM analysis. Furthermore, it was found that the polymer exhibited remarkable electrochromic features that can be switched from green in the neutral state to violet state under applied external potentials without disturbing the photochromic units.