4897-68-1Relevant academic research and scientific papers
Approaches to Styrenyl Building Blocks for the Synthesis of Polyene Xanthomonadin and its Analogues
Madden, Katrina S.,Laroche, Benjamin,David, Sylvain,Batsanov, Andrei S.,Thompson, Daniel,Knowles, Jonathan P.,Whiting, Andrew
, p. 5312 - 5322 (2018)
A number of aryl building blocks for the synthesis of two xanthomonadin natural product pigments, as well as a related analogue, were accessed using a divergent hydroboration/bromoboration approach from a key alkynyl intermediate. A new approach towards s
An Ortho-Tetraphenylene-Based “Gel?nder” Architecture Consisting Exclusively of 52 sp2-Hybridized C Atoms
Dekkiche, Hervé,Malin?ik, Juraj,Prescimone, Alessandro,H?ussinger, Daniel,Mayor, Marcel
, p. 13258 - 13267 (2021)
A new type of “Gel?nder” molecule based on a ortho-tetraphenylene core is presented. The central para-quaterphenyl backbone is wrapped by a 4,4’-di((Z)-styryl)-1,1’-biphenyl banister, with its aryl rings covalently attached to all four phenyl rings of the backbone. The resulting helical chiral bicyclic architecture consists exclusively of sp2-hybridized carbon atoms. The target structure was assembled by expanding the central ortho-tetraphenylene subunit with the required additional phenyl rings followed by a twofold macrocyclization. The first macrocyclization attempts based on a twofold McMurry coupling were successful but low yielding; the second strategy, profiting from olefin metathesis, provided satisfying yields. Hydrogenation of the olefins resulted in a saturated derivative of similar topology, thereby allowing the interdependence between saturation and physico-chemical properties to be studied. The target structures, including their solid-state structures, were fully characterized. The helical chiral bicycle was synthesized as a racemate and separated into pure enantiomers by HPLC on a chiral stationary phase. Comparison of recorded and simulated chiroptical properties allowed the enantiomers to be assigned.
Organic compounds and blue light organic electroluminescent devices
-
Paragraph 0178-0182, (2022/01/12)
The present invention relates to organic compounds and blue light organic electroluminescent devices. The present invention discloses an organic compound having a structure shown in formula (1): The present invention further discloses a blue organic organic light emitting device with the organic compound as a material.
Organic compound and red light organic electroluminescent device
-
Paragraph 0162-0165, (2021/12/07)
The invention relates to an organic compound and a red light organic electroluminescent device. The invention discloses an organic compound which has a structure as shown in a formula (1), a formula (2), a formula (3), a formula (4) or a formula (5). The invention also discloses a red light organic electroluminescent device using the organic compound as a material.
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
Paragraph 0046-0049, (2020/04/29)
The present invention discloses an organic compound and an organic electroluminescence device employing the organic compound as the fluorescent host material in the light emitting layer of the organic electroluminescence device. The organic electroluminescence device employing the organic compound of the present invention can operate under reduced driving voltage, increase current efficiency, and prolong half-life time.
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
Paragraph 0037-0038, (2020/07/07)
The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as an emitting host material, an electron transfer material or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for increasing a half-life or current efficiency of the organic electroluminescence device, and may be for lowering a driving voltage or power consumption of the organic electroluminescence device. The same definition as described in the present invention.
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
Paragraph 0037; 0038, (2020/08/05)
The present invention discloses an organic compound and an organic electroluminescence device using the organic compound as a host material, a fluorescent guest material, an electron transporting or a hole blocking material in the light emitting layer of the organic electroluminescence device. The organic compound may be for lowering a driving voltage, power consumption or increasing a current efficiency or half-life of the organic electroluminescence device. The same definition as described in the present invention.
ORGANIC COMPOUND AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
-
Paragraph 0076-0078, (2020/11/24)
本發明提供一種有機化合物,以下式(A)表示: 式(A),其中G1和G2獨立表示無取代基或取代基以下式(B)表示: 式(B);其中G1和G2不同時表示無取代基。該等化合物可用於有機電致發光器件中,尤其用作發光層摻雜劑材料,或主體材料 An organic compound represented by the following formula (A) is described. formula (A), wherein G1and G2independently represent no substitution or a substitution represented by the following formula (B): formula (B) wherein G1and G2do not simultaneously represent no substitution. These compounds can be used in organic electroluminescence devices, especially as dopant materials, or host materials of a light-emitting layer.
Gold(I)-Catalyzed Cascade Cyclization Reactions of Allenynes for the Synthesis of Fused Cyclopropanes and Acenaphthenes
Ikeuchi, Takaya,Inuki, Shinsuke,Oishi, Shinya,Ohno, Hiroaki
supporting information, p. 7792 - 7796 (2019/05/15)
A gold-catalyzed reaction of phenylene-tethered allenynes with benzofurans gave 1-(naphth-1-yl)cyclopropa[b]benzofuran derivatives, whereas the reaction of 1-allenyl-2-ethynyl-3-methylbenzene derivatives in the absence of benzofurans gave acenaphthenes in good yields. These results can be rationalized by nucleophilic attack of the alkyne moiety on an activated allene to form a vinyl cation intermediate.
Efficient synthesis of 3-benzoyl Benzo[b]thiophenes and raloxifene via Mercury(II)-Catalyzed cyclization of 2-alkynylphenyl alkyl sulfoxides
Wen, Shi-Ming,Lin, Cheng-Han,Chen, Chin-Chau,Wu, Ming-Jung
, p. 2493 - 2499 (2018/04/16)
The unique selective estrogen receptor modulator, Raloxifene (1), and antitubulin agent 2 were synthesized through the key intermediate, 4-methoxybenzyl 2-bromo-4-methoxyphenyl sulfoxide (6), respectively. It was found that compared with the o-sulfanyl aryl bromides, the sulfinyl group at ortho position accelerated the Sonogashira coupling reaction of aryl bromides. Thus, compound 6 was coupled with 3,4,5-trimethoxyphenyl acetylene, followed by mercury-catalyzed cyclization reaction afford compound 2 in 79% overall yield. Raloxifene (1) was prepared from compound 6 in four steps and 33% overall yield via coupling reaction with 1-trimethylsily-2-(4-tert-butyldimethylsiloxy)phenylethyne, mercury-catalyzed cyclization reaction, alkylation and demethylation.
