314773-67-6

Upstream product

• 92-94-4 [1,1';4',1'']terphenyl 
• 1762-85-2 4''-iodo[1,1';4',1'']terphenyl 
• 124774-74-9 para-ethynyl-(4,4,5,5-tetramethyl-4,5-dihydro-1H-3-(N-oxide)-imidazol-1-yloxyl)-phenyl 
• 10602-04-7 (4-ethynylphenyl)methanol 
• 175203-59-5 4-[4-(hydroxymethyl)phenyl]-2-methylbut-3-yn-2-ol 
• 124774-78-3 4-ethynyl-1-(1,3-dihydroxy-4,4,5,5-tetramethylimidazolin-2-yl)benzene 
• 117569-57-0 4-(3-hydroxy-3-methylbut-1-ynyl)benzaldehyde 
• 1122-91-4 4-bromo-benzaldehyde 
• 63697-96-1 4-Ethynylbenzaldehyde 

Relevant academic research and scientific papers

Optically Detected ESR and Low Magnetic Field Signals from Spin Triads: 2-Imidazoline-1-Oxyl Derivatives in X-Irradiated Alkane Liquids as a Method to Study Three-Spin Systems

This contribution reports the design and synthesis of a series of spin-labeled charge acceptors to produce three-spin systems of "radical ion/biradical ion" type in X-irradiated alkane liquids. This opens the way to study spin triads in experimental condi

Synthesis and properties of paramagnetic derivatives of linear and fused polyaromatic compounds

Paramagnetic derivatives of tolan, anthracene, and terphenyl of the A - Sp - R type, where A is an aromatic group, R is a stable radical center, and Sp is a spacer, were synthesized. The electronic absorption and luminescence spectra of these compounds were examined. The introduction of the paramagnetic dihydroimidazole fragment causes a decrease (10 - 500-fold) in the quantum yield of luminescence compared to emission of the individual aromatic luminophore. The presence of a radical center (R) in the (alkane) +/- A - Sp - R radical-ionic pair leads to the disappearance or fast (nanoseconds) damping of the magnetic effect of luminescence arising upon recombination of these pairs.

Cross-coupling of aryl iodides with paramagnetic terminal acetylenes derived from 4,4,5,5-tetramethyl-2-imidazoline-2-oxyl 3-oxide

2-(Arylylethynylphenyl)-4,4,5,5-tetramethyl-2-imidazoline-1-oxyl 3-oxides 12 and 13 were synthesized by cross-coupling of aryl iodides with 1-alkynes containing the 4,4,5,5-tetramethyl-2-imidazoline-1-oxyl 3-oxide fragment. A procedure was developed for the preparation of 3-and 4-ethynyibenzaldehydes with the use of 2-methylbut-3-yn-2-ol.