79102-68-4

Upstream product

• 79-37-8 oxalyl dichloride 
• 104-42-7 4-dodecylaniline 

Downstream Products

• 1379525-69-5 oxalic acid N,N'-bis(4-dodecylphenyl)imidoyl dichloride 
• 1392811-14-1 N,N′-bis(4-dodecylphenyl)-1,2-ethanediamine hydrochloride 
• 1392811-07-2 1,3-bis[(2,6-diisopropyl)phenyl]imidazolinium chloride 
• 1392811-21-0 N,N'-bis(4-dodecyl-2,6-dibromophenyl)-1,2-ethanediamine hydrochloride 

Relevant academic research and scientific papers

Deeply colored polymers containing 1,3,4,6-tetraarylpyrrolo[3,2- b ]pyrrole-2,5-dione (IsoDPP) units in the main chain

Synthesis and characteristic properties of polymers P1-P4 containing 1,3,4,6-tetraarylated pyrrolo[3,2-b]pyrrole-2,5-dione (isoDPP) units in the main chain are described. P1 and P2 were prepared upon palladium-catalyzed polycondensation of 3,6-bis(4-bromophenyl)-1,4-bis(4-tert-butylphenyl)pyrrolo[3, 2-b]pyrrole-2,5-dione (M1) or 1,4-bis(4-bromophenyl)-3,6-bis(4-tert-butylphenyl) pyrrolo[3,2-b]pyrrole-2,5-dione (M2) and 2,2′-(9,9-dihexyl-9H-fluoren-2,7- diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) (M4), while P3 and P4 were synthesized upon polycondensation of 3,6-bis(5-bromothien-2-yl)-1,4-bis(4- dodecylphenyl)pyrrolo[3,2-b]pyrrole-2,5-dione (M3) and 2,5-bis(4,4,5,5- tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene (M5) or 9-(2-ethylhexyl)-2,7- bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)carbazole (M6). Deeply colored polymers with molecular weights between 3.5 and 22 kDa were obtained. The polymers were soluble in common organic solvents such as dichloromethane, chloroform, and tetrahydrofuran. All polymers exhibit broad absorption bands with high extinction coefficients (ε > 2 × 104 L mol-1 cm-1) but weak fluorescence, the quantum yields being below 1%. Although P1 and P2 are isomers, their optical properties are rather different. P1 with polyconjugated backbone exhibits an absorption maximum at 409 nm, while P2 has a maximum at 360 nm due to interruption of χ-conjugation at the lactam N atoms. The presence of thienyl-isoDPP units in the backbone causes a red-shift of the absorption to 489 nm (P3) and 435 nm (P4). All polymers exhibit nearly irreversible oxidation and reduction behavior. Bandgaps of the polymers with phenyl-substituted isoDPP units (P1 and P2) are at about 2 eV, while those of polymers with thienyl-substituted isoDPP (P3 and P4) are at about 1.5 eV.

PROCESS FOR PRODUCING ALPHA-HYDROXYKETONE COMPOUND

An object of the present invention is to produce an α-hydroxyketone compound easily and effectively. Provided is a process for producing an α-hydroxyketone compound comprising a stirring step of stirring one or more aldehyde compounds or polymers thereof in the presence of a base and an imidazolinium salt represented by the formula (1): wherein R1 and R2 each independently represent a hydrogen atom, an alkyl group optionally having a substituent or an aryl group optionally having a substituent, or R1 and R2 are bound to each other to form a ring together with carbon atoms to which they bind, R3 and R4 each independently represent an aryl group having one or more electron withdrawing groups, and X? represents an anion.