2340-87-6

Upstream product

• 392-56-3 Hexafluorobenzene 
• 105-56-6 ethyl 2-cyanoacetate 

Downstream Products

• 68596-20-3 2-pentafluorophenylbutyronitrile 
• 68598-72-1 ethyl 2-cyano-2-pentafluorophenylbutyrate 
• 16264-67-8 4,5,6,7-tetrafluoro-1H-indole 
• 19282-55-4 4,5,6,7-Tetrafluoroindoline 
• 1583-76-2 2-(2,3,4,5,6-pentafluorophenyl)ethan-1-amine 
• 653-30-5 (pentafluorophenyl)acetonitrile 
• 113423-77-1 methyl 4-cyano-4-(2,5,6-trifluoro-3-methoxy-4-nitrophenyl)hexanoate 
• 113423-83-9 methyl 4-cyano-4-pentafluorophenylhexanoate 
• 113423-87-3 4-(4-amino-2,3,5,6-tetrafluorophenyl)-4-cyanohexanoic acid 
• 113423-70-4 3-(4-amino-2,3,5,6-tetrafluorophenyl)-3-ethyl-piperidine-2,6-dione 
• 113423-85-1 3-ethyl-3-(2,3,5,6-tetrafluoro-4-hydroxyphenyl)piperidine-2,6-dione 
• 113423-84-0 4-cyano-4-pentafluorophenylhexanoic acid 
• 113423-86-2 4-carboxamido-4-pentafluorophenylhexanoic acid 
• 113423-81-7 ethyl-2-pentafluorophenylbutyrate 

Relevant academic research and scientific papers

Basicities and Nucleophilicities of Pyrrolidines and Imidazolidinones Used as Organocatalysts

The Br?nsted basicities pKaH (i.e., pKa of the conjugate acids) of 32 pyrrolidines and imidazolidinones, commonly used in organocatalytic reactions, have been determined photometrically in acetonitrile solution using CH acids as indicators. Most investigated pyrrolidines have basicities in the range 16 aH aH aH 12.6) and the 2-imidazoliummethyl-substituted pyrrolidine A21 (pKaH 11.1) are outside the typical range for pyrrolidines with basicities comparable to those of imidazolidinones. Kinetics of the reactions of these 32 organocatalysts with benzhydrylium ions (Ar2CH+) and structurally related quinone methides, common reference electrophiles for quantifying nucleophilic reactivities, have been measured photometrically. Most reactions followed second-order kinetics, first order in amine and first order in electrophile. More complex kinetics were observed for the reactions of imidazolidinones and several pyrrolidines carrying bulky 2-substituents, due to reversibility of the initial attack of the amines at the electrophiles followed by rate-determining deprotonation of the intermediate ammonium ions. In the presence of 2,4,6-collidine or 2,6-di-tert-butyl-4-methyl-pyridine, the deprotonation of the initial adducts became faster, which allowed the rate of the attack of the amines at the electrophiles to be determined. The resulting second-order rate constants k2 followed the correlation log?k2(20 °C) = sN(N + E), where electrophiles are characterized by one parameter (E) and nucleophiles are characterized by the two solvent-dependent parameters N and sN. In this way, the organocatalysts A1-A32 were integrated in our comprehensive nucleophilicity scale, which compares n-, -, and σ-nucleophiles. The nucleophilic reactivities of the title compounds correlate only poorly with their Br?nsted basicities.

Fluorene derivative and OLED (organic light-emitting diode) with same

The invention provides a fluorene derivative and an OLED (organic light-emitting diode) with the same, and relates to the technical field of organic optoelectronic materials. The 9-position of a fluorene main structure is connected with a strong electron withdrawing group through double bonds, one side is connected with a phenanthrene fluorene structure to form the fluorene derivative, the fluorene derivative has good electronic transmission capacity and hole transmission capacity, charge carrier injection rate and exciton recombination rate of a luminescent layer can be effectively increased,besides, the fluorene derivative is good in heat stability and film-forming property, is simple and easy to synthesize and can be applied to the OLED as a luminescent layer main body and/or a hole blocking layer, the problems of unbalanced charge carrier transmission, low luminous efficiency, short service life and unstable light color of the OLED can be effectively solved, and the OLED has the advantages of low drive voltage, high luminous efficiency and long service life.

The synthesis of 7,8,9,10-Tetrafluoroellipticine

We have synthesized a novel ellipticine analogue, 7,8,9,10-Tetrafluoroellipticine, in nine steps from hexafluorobenzene and ethyl cyanoacetate, via 1-(phenysulfonyl)-4,5,6,7-Tetrafluoroindole. The key step is lithiation of the indole and subsequent coupling with 3,4-pyridinedicarboxylic acid anhydride to afford a ketolactam. Reaction of the lactam with methyllithium followed by reduction with sodium borohydride yields 7,8,9,10-Tetrafluoroellipticine. formula presented.

Organic semiconductor material and the electronic component

The invention relates to an organic semiconducting material, comprising at least one matrix material and at least one doping material, wherein the doping material is a 3-radialene compound, and wherein the matrix material is a terphenyl diamine compound, and to an organic component and to a mixture for producing a doped semiconductor layer.

ORGANIC SEMICONDUCTIVE MATERIALS AND ORGANIC COMPONENT

An organic semiconductive material comprising at least one matrix material and at least one doping material, wherein the doping material is selected from an organic compound and wherein the matrix material is selected from an diamine compound, also an organic component and a mixture for producing a doped semiconductor layer.

The Synthesis of 3-(4-Aminotetrafluorophenyl)-3-ethylpiperidine-2,6-dione; a Fluorinated Derivative of Aminoglutethimide

In investigating the role of the amino function of aminoglutethimide in the inhibition of the cholesterol side-chain cleveage enzyme system desmolase and the estrogen-forming system aromatase, 4-amino-2