124774-78-3

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 175203-59-5 4-[4-(hydroxymethyl)phenyl]-2-methylbut-3-yn-2-ol 
• 117569-57-0 4-(3-hydroxy-3-methylbut-1-ynyl)benzaldehyde 
• 10602-04-7 (4-ethynylphenyl)methanol 
• 77123-57-0 4-[(trimethylsilyl)ethynyl]bezaldehyde 
• 3964-18-9 2,3-dimethyl-2,3-dinitrobutane 
• 63697-96-1 4-Ethynylbenzaldehyde 
• 14538-51-3 2,3-bis(hydroxyamino)-2,3-dimethylbutane monosulfate 
• 14384-45-3 N,N'-dihydroxy-2,3-dimethylbutane-2,3-diamine 

Downstream Products

• 623946-36-1 C₃₆H₃₈N₄O₂ 
• 623946-39-4 C₃₆H₃₇N₅O₄ 
• 314773-67-6 4,4,5,5-tetramethyl-2-(4-[1,1':4',1'']terphenyl-4-ylethynylphenyl)-4,5-dihydro-1H-imidazole 1-oxyl 3-oxide 
• 124774-76-1 2-(4-{4-[4-(1-oxyl-3-oxo-4,4,5,5-tetramethyl-4H,5H-imidazolin-2-yl)-phenyl]buta-1,3-diyn-1-yl}phenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxo 
• 623946-34-9 C₈₀H₁₀₂N₄O₄ 
• 1027825-19-9 2-[4-(4-ethynyl-phenylethynyl)-phenyl]-4,4,5,5-tetramethyl-4,5-dihydro-imidazol-1-ol 

Relevant academic research and scientific papers

A Weakly Antiferromagnetically Coupled Biradical Combining Verdazyl with Nitronylnitroxide Units

An antiferromagnetically (AFM) coupled biradical based on oxoverdazyl and nitronylnitroxide was synthesized in 46 % yield using Sonogashira coupling. The obtained heterobiradical evidenced distinct properties of both radical entities in solution. Dependin

Dual dopable poly(phenylacetylene) with nitronyl nitroxide pendants for reversible ambipolar charging and discharging

An electrode-attached layer of poly(phenylacetylene) bearing a pendant nitronyl nitroxide group per repeating unit, obtained by the Rh-catalyzed polymerization of 2-(4-ethynylphenyl)-4,4,5,5- tetramethylimidazoline-l-oxyl 3-oxide, underwent oxidation and

Spin exchange interaction through phenylene-ethynylene bridge in diradicals based on iminonitroxide and nitronylnitroxide radical derivatives. 1. Experimental investigation of the through-bond spin exchange coupling

A series of bis-iminonitroxide diradical derivatives of different lengths and geometry have been prepared that incorporate a conjugated phenylene-ethynylene bridge as a rigid spacer. This paper describes the synthesis of these new components and their main characterizations. An unexpected singlet ground state and substituent effects on the singlet-triplet gap have been found for substituted "m-phenylene"-based diradicals. The effects of the π-conjugation on the intramolecular through-bond spin coupling have been investigated by changing the length of the spacer within linear derivatives. The EPR studies demonstrate the intramolecular magnetic coupling between the radical spins within all compounds. This result is very attractive and unusual, given the large distance between the radicals from 15 A in the dimer to 36 A in the pentamer.

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.

Synthesis of nitronyl- and imino-nitroxide-triradicals interconnected by phenyl ethynyl spacer

The design and synthesis, as well as solid state and ESR characterisation of three new triradicals based on phenyl ethynyl backbone bearing nitronyl-nitroxide and imino-nitroxide groups, are reported. The synthesis of these compounds was based on palladium-coupling reactions between alkynyl and bromo derivatives. An ESR study showed magnetic interactions between the radicals through the phenyl ethynyl-coupling unit in solution. (C) 2000 Elsevier Science Ltd.