75277-36-0Relevant academic research and scientific papers
A kind of star-shaped fluorescent molecule and its preparation method and application (by machine translation)
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Paragraph 0051; 0055; 0056; 0057, (2019/01/14)
The invention belongs to the field of organic photoelectric technology, discloses a star-shaped fluorescent molecule and its preparation method and application. The star-shaped fluorescent molecules of the following formula, Wherein Ar1 is or The star-shaped fluorescent molecular structure containing a hetero atom in the sulfur -, help to improve the fluorescence quantum yield, help to strengthen the fluorescent material, the photoelectric efficiency of the device is improved. And the electron deficient group - sulfone, can effectively reduce the LUMO energy level of the fluorescent material, is propitious to the electron injection, the turn-on voltage of the device is reduced; and the invention the star-type fluorescence molecule has relatively high molecular weight, can form a dense film, avoiding the light-emitting layer of a light emitting region of the pinhole defect, favorable to the preparation of excellent appearance of the electroluminescent device. Based on the star-shaped fluorescent molecules of the luminescent layer preparation polymer electroluminescent light-emitting device of simple process, has the potential to apply to the organic electroluminescent device in industrial production. (by machine translation)
ORGANIC SULFUR COMPOUND, PROCESS FOR PRODUCTION OF THE SAME, AND ORGANIC ELECTROLUMINESCENCE ELEMENT UTILIZING THE SAME
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Page/Page column 22, (2011/06/26)
Disclosed is an organic sulfur compound represented by general formula (a1) [wherein, A represents -S-, -S(O)- or -S(O)2-; Z1 and Z4 independently represent a trivalent aromatic hydrocarbon group, or the like; Z2 and Z3 independently represent a bivalent aromatic hydrocarbon group, or the like; Ar1, Ar2, Ar3 and Ar4 independently represent an aromatic hydrocarbon group, or the like; and n represents a number of 0 or 1] or general formula (b1) [wherein A is as defined above; Z5 represents a trivalent aromatic hydrocarbon group, or the like; Ar represents an aromatic hydrocarbon group having a valency of m, or the like, Ar1 and Ar2 are as defined above; and m represents a number of 2 of 3]. The compound is useful as an electron transport material, a hole blocking material or a host material for an organic electroluminescence element.
ORGANOSULFUR COMPOUND, PROCESS FOR PRODUCING THE SAME, AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING THE SAME
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, (2011/06/25)
Disclosed is an organosulfur compound denoted by a general formula (a1): in which A denotes —S—, —S(O)— or —S(O)2—; Z1 and Z4 denote a trivalent aromatic hydrocarbon group or the like; Z2 and Z3 denote a bivalent aromatic hydrocarbon group or the like; Ar1, Ar2, Ar3 and Ar4 denote an aromatic hydrocarbon group or the like; and n is 0 or 1, or a general formula (b1): in which A denotes the same meaning as aforesaid; Z5 denotes a trivalent aromatic hydrocarbon group or the like; Ar denotes a m-valent aromatic hydrocarbon group or the like; Ar1 and Ar2 denote the aforesaid meaning; and m is 2 or 3. This compound is useful as an electron transport material, a hole blocking material or a host material of an organic electroluminescence element.
Synthesis of dendritic oligo(aryl sulfone)s as supports for synthesis
Taylor, Paul C.,Wall, Michael D.,Woodward, Peter R.
, p. 12314 - 12322 (2007/10/03)
A short, divergent route to G1 oligo(aryl sulfone)s and a G 2 oligo(aryl sulfone) dendrimer using nucleophilic aromatic substitution reactions is described. A range of tetrasubstituted pentasulfones are proposed for applications as homogeneous supports for synthesis. Key to achieving selectivity in the syntheses is the activation of leaving groups by sulfide to sulfone oxidation. Preparation of the G2 oligo(aryl sulfone) is low-yielding due to competition from SET processes that are interesting from a mechanistic point of view. The utility of the supports is exemplified with a four step synthesis of a dipeptide and by 'react and release' synthesis of amides.
