1220516-14-2

Upstream product

• 288156-11-6 4,15-diformyl[2.2]paracyclophane 
• 134-81-6 benzil 

Downstream Products

• 1228389-86-3 pseudogem-DMI-DPI[2.2]paracyclophane 
• 1300531-18-3 C₅₀H₄₂N₄O₄ 
• 1300739-38-1 C₅₀H₄₂N₄O₄ 
• 1228389-85-2 [2.2]paracyclophane-4-bis(4,5-(3,4-dimethoxyphenyl)-1H-imidazol-2-yl)-13-(4,5-diphenyl-1H-imidazol-2-yl) 
• 1228389-89-6 pseudogem-(4,5-diphenyl-1H-imidazol-2-yl-4-pyrenyl-5-phenyl-1H-imidazol-2-yl)[2.2]paracyclophane 
• 1228389-97-6 Ac-pseudogem-bisDPIH[2.2]paracyclophane 
• 1228389-98-7 Ac-pseudogem-bisDPI[2.2]paracyclophane 
• 1228389-96-5 pseudogem-DAI-DPI[2.2]paracyclophane 
• 1221895-63-1 pseudogem-PHI-DPI[2.2]paracyclophane 
• 1228389-83-0 pseudogem-BMPI-DPI[2.2]paracyclophane 
• 1228389-95-4 [2.2]paracyclophane-4-(4-(p-dimethylaminophenyl)-5-(phenyl)-1H-imidazol-2-yl)-13-(4,5-diphenyl-1H-imidazol-2-yl) 
• 1228389-84-1 [2.2]paracyclophane-4-bis(4,5-(para-hydroxyphenyl)-1H-imidazol-2-yl)-13-(4,5-diphenyl-1H-imidazol-2-yl) 
• 1228389-82-9 [2.2]paracyclophane-4-bis(4,5-(para-methoxyphenyl)-1H-imidazol-2-yl)-13-(4,5-diphenyl-1H-imidazol-2-yl) 
• 1221895-62-0 pseudogem-PHIH-DPIH[2.2]paracyclophane 

Relevant academic research and scientific papers

NOVEL CROSSLINKED HEXAARYL BISIMIDAZOLE COMPOUND AND DERIVATIVE THEREOF, METHOD FOR PRODUCING THE COMPOUND AND PRECURSOR COMPOUND TO BE USED IN THE PRODUCTION METHOD

Provided is a crosslinked hexaaryl bisimidazole compound which can achieve photochromic characteristics, i.e., visually showing decoloring simultaneously with the stop of light irradiation and enables precise control of color tone, density and so on in coloring. Also provided are a method for producing the aforesaid compound whereby the degrees of freedom in molecular design and synthesis can be increased, and a precursor compound to be used in the production method.

Unprecedented radical-radical reaction of a [2.2]paracyclophane derivative containing an imidazolyl radical moiety

Pseudogem-DPIM-DPI[2.2]PC dimer (3), with a C-N bond between the [2.2]paracyclophane ([2.2]PC) moiety and the imidazole ring, was synthesized. This is the first crystallographic observation of a highly sterically constrained 1-ene-2,5-cyclohexadiene structure for a [2.2]PC derivative. Compound 3 shows a photochromic behavior, exhibiting a color change from pale yellow to green upon either UV or visible light irradiation, both in the solid state and in solution at room temperature.

Fast photochrome polymers carrying [2.2]paracyclophane-bridged imidazole dimer

The synthesis and photochromic behavior of the fast photochromic polymers carrying [2.2]paracyclophane-bridged imidazole dimer are demonstrated. A significant feature of this synthetic strategy is that we can modify the photochromic properties such as coloration/decoloration rate, coloring, and photosensitivity via the stepwise synthetic approach of the imidazole dimer system. Notably, the photochromic behavior of the polymers is not affected by the environment around the photochromes and copolymerization with other monomers in both solution and film, which cannot be realized in any other conventional photochromic systems. The comparable photochromic behavior of the homopolymers and. copolymers in solution and film indicates that the photochromic unit is independent from the local environment, which allows effective molecular design of the photochromic monomer unit to accomplish desired photochromic properties of the polymer.