- Silole-core dendrimers: A facile synthesis and photophysical properties
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Silole-core dendrimers having benzyl ether-type dendron units, readily synthesized by the Ni-catalyzed reaction of benzyloxy-substituted diphenylacetylenes with 1,1,2,2-tetramethyldisilane, display, upon excitation of the dendron units, efficient energy t
- Sanji, Takanobu,Ishiwata, Hiroyuki,Kaizuka, Tomoyoshi,Tanaka, Masato,Sakurai, Hideki,Nagahata, Ritsuko,Takeuchi, Kazuhiko
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- Aromatic Metamorphosis of Thiophenes by Means of Desulfurative Dilithiation
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A new mode of aromatic metamorphosis has been developed, which allows thiophenes and their benzo-fused derivatives to be converted to a variety of exotic heteroles. This transformation involves 1) the efficient generation of key 1,4-dianions by means of desulfurative dilithiation with lithium powder and 2) the subsequent trapping of the dianions with heteroatom electrophiles in a one-pot manner. Via the desulfurative dilithiation, the sulfur atoms of thiophenes are replaced also with a carbon–carbon double bond or a 1,2-phenylene for the construction of benzene rings.
- Kaga, Atsushi,Iida, Hirokazu,Tsuchiya, Shun,Saito, Hayate,Nakano, Koji,Yorimitsu, Hideki
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supporting information
p. 4567 - 4572
(2021/02/12)
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- Compounds comprising benzophenone group, Organic electronic device comprising organic layers comprising the photo-cured of the monomer compounds
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The compound represented by Formula I or II is provided as an organic material layer material of an organic electronic device. The benzophenone functional group-containing compound represented by the following Chemical I or Chemical Formula II: I (Chemical Formula Ar -) (R). 1 -R2 -Bpm In the formula, m is 1 and 10, and Ar is a substituted or unsubstituted m having a C-order linking group. 6 -C60 Substituted or unsubstituted m having aryl group, C nd-linking group3 -C60 Substituted or unsubstituted fused m with heteroaryl groups or C primary linking groups6 -C60 Aryl group, R1 And R2 Each independently represents a simple bond, O - a substituted or unsubstituted C. 6 -C30 Arylene group, substituted or unsubstituted C3 -C30 Heteroarylene group, substituted or unsubstituted C1 -C10 The alkylene group and Bp are 1 divalent linking groups derived from benzophenone functional groups. Chemical Formula II. In the formula, n is at least 1 and Ar ' is a substituted or unsubstituted m having a C-order linking group. 6 -C60 Aryl group Substituted or unsubstituted m having a C nd order linker3 -C60 Substituted or unsubstituted fused m with heteroaryl groups or C primary linking groups6 -C60 Aryl group, R3 And R4 Each independently represents a simple bond, O - a substituted or unsubstituted C. 6 -C30 Arylene group, substituted or unsubstituted C3 -C30 Heteroarylene group, substituted or unsubstituted C6 -C30 Fused arylene groups, substituted or unsubstituted C1 -C10 The alkylene group and Bp ' are 1 divalent linking groups derived from benzophenone functional groups.
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Paragraph 0333-0336; 0338-0339
(2021/03/09)
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- Compounds comprising benzophenone group, Organic electronic device comprising organic layers comprising the photo-cured of the monomer compounds
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The present invention provides a compound containing a benzophenone functional group represented by chemical formula I: Ar-(R_1-R_2-Bp)_m or chemical formula II as a material for an organic material layer of an organic electronic device, wherein the compound is the compound containing the benzophenone functional group.COPYRIGHT KIPO 2020
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Paragraph 0338-0344
(2020/08/12)
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- Electrochemiluminescence Platforms Based on Small Water-Insoluble Organic Molecules for Ultrasensitive Aqueous-Phase Detection
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Highly efficient detection in the aqueous phase for water-insoluble organic molecule probes is challenging. The bright aggregated-state electrochemiluminescence (ECL) of 1,1-disubstituted 2,3,4,5-tetraphenylsiloles by a co-reactant approach was discovered
- Han, Zhengang,Yang, Zhaofan,Sun, Heshui,Xu, Yali,Ma, Xiaofang,Shan, Duoliang,Chen, Jing,Huo, Shuhui,Zhang, Zhen,Du, Peiyao,Lu, Xiaoquan
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supporting information
p. 5915 - 5919
(2019/04/03)
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- Synthesis of siloles via rhodium-catalyzed cyclization of alkynes and diynes with hexamethyldisilane
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A rhodium-catalyzed silylative cyclization of alkynes and 1,6-diynes with hexamethyldisilane is described. These reactions enable the synthesis of densely substituted silole derivatives through the use of a rhodium(I)-norborna-2,5- diene complex as a cata
- Matsuda, Takanori,Suda, Yuya,Fujisaki, Yosuke
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scheme or table
p. 813 - 816
(2011/06/11)
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- Reduction of 1-chloro-1,2,3,4,5-pentaphenylsilole: Formation of silole monoanion and dianion
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The reduction of 1-chloro-1,2,3,4,5-pentaphenylsilole, (C4Ph4SiPhCl, 1) with 2 equiv lithium gave the pentaphenylsilole anion [C4Ph4SiPh]- (2), silole dianion [C4Ph4Si]2-/s
- Sohn, Honglae
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p. 134 - 138
(2007/10/03)
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- Platinum-catalyzed bis-germylation of alkynes with organodigermanes and cyclic oligogermanes
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Hexamethyldigermane, Me3GeGeMe3, reacted with various alkynes in the presence of platinum complexes at 120 °C to afford Z-1,2-bis(germyl)ethenes in moderate to good yields. Terminal alkynes exhibit higher reactivities than internal ones. [Pt(acac)2] and [Pt(dba)2] serve as efficient catalysts, while [Pt(PPh3)4], [PtCl2(PPh3)2], and [Pt(dba)2]-phosphite were found to be inactive. Four- and six-membered cyclic oligogermanes, such as dodecamethylcyclohexagermane, (Me2Ge)6, reacted with alkynes in the presence of platinum catalysts to yield 1,4-digermacyclohexa-2,5-dienes in ca. 30% yield. The reactions of phenylacetylene with 1,2-digermacyclohexa-3,5-dienes afforded the corresponding 1,4-digermacycloocta-2,5,7-trienes in 93% yield. Bis(germyl)platinum complexes having various tertiary phosphine ligands have been prepared as models of a key intermediate in the above mentioned catalytic bis-germylation of alkynes, and their structures have been established by spectroscopic methods and X-ray crystallography. Bis(germyl)platinum complexes reacted with phenylacetylene to give the corresponding insertion products, germyl(germylvinyl)platinum species, whose structures have been determined by spectroscopic and X-ray analysis. Germyl(germylvinyl)platinum complexes were found to liberate a bis-germylation product of the alkyne upon heating. The result supports a mechanism involving the oxidative addition of a digermane to a Pt(0) complex, the insertion of an alkyne into one of the two Pt-Ge bonds to give a germyl(germylvinyl)platinum species, and the reductive elimination of the bis-germylation product of the alkyne. Evidence suggesting the extrusion of a germylene unit from the bis-germylplatinum species has been obtained, accounting for the generation courses of other by-products.
- Mochida, Kunio,Wada, Tohru,Suzuki, Kaoru,Hatanaka, Wakako,Nishiyama, Yuriko,Nanjo, Masato,Sekine, Akiko,Ohashi, Yuji,Sakamoto, Masato,Yamamoto, Akio
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p. 123 - 137
(2007/10/03)
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- Efficient blue emission from siloles
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2,3,4,5-Tetraphenylsiloles with different 1,1-substituents on the ring silicon atoms, i.e., 1,1-dimethyl-2,3,4,5-tetraphenylsilole (1), 1-methyl-l-(3-chloropropyl)-2,3,4,5-tetraphenylsilole (2), 1-methyl-l,2,3,4,5-pentaphenylsilole (3) and hexaphenylsilol
- Tang,Zhan,Yu,Lee,Liu,Zhu
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p. 2974 - 2978
(2007/10/03)
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- Toward new materials for organic electroluminescent devices: Synthesis, structures, and properties of a series of 2,5-diaryl-3,4-diphenylsiloles
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A series of 2,5-diaryl-3,4-diphenylsiloles, with various mono-substituted phenyl groups, extended π-conjugated groups, and heteroaryl groups as aryl groups at the 2,5-positions, has been prepared by a one-pot synthesis from bis(phenylethynyl)silanes based
- Yamaguchi, Shigehiro,Endo, Tomonori,Uchida, Manabu,Izumizawa, Takenori,Furukawa, Kenji,Tamao, Kohei
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p. 1683 - 1692
(2007/10/03)
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- Silacyclopentadiene derivatives and an organic electroluminescent element obtained by using the silacyclopentadiene derivative
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An electroluminescence element (EL) obtained by using a silacyclopentadiene. derivation expressed by the general formula (I) and the derivative are provided. STR1 (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R1 to R4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).
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- Reactions of vinyldisilanes with ruthenium carbonyl
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Reaction of β-styrylpentamethyldisilane (1a) with Ru3(CO)12 afforded β-styryltrimethylsilane (2a) with elimination of a dimethylsilylene unit, while under similar conditions α-isomer 1b yielded 2a together with 1a. Studies on these r
- Dai, Xiaosu,Kano, Naokazu,Kako, Masahiro,Nakadaira, Yasuhiro
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p. 717 - 718
(2007/10/03)
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- Electron-transfer reaction of 1,2-disila-3,5-cyclohexadienes
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Phololysis of 1,2-disila-3,5-cyclohaxadienes 1a-b in the presence of methylene blue as a sensitizer led to efficient formation of the correspondng siloles as ring contraction products. The reaction mechanism is best rationalized by electron-transfer from
- Kako, Masahiro,Takada, Hideki,Nakadaira, Yasuhiro
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p. 3525 - 3528
(2007/10/03)
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- Synthesis and reactivity of 1,1-disodio-2,3,4,5-tetraphenyl-1-silacyclopentadiene
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1,1-Disodio-2,3,4,5-tetraphenyl-1-silacyclopentadiene (II, 1,1-disodio-TPSCp) was obtained from the reaction of 1,1-dichloro-2,3,4,5-tetraphenyl-1-silacyclopentadiene (1,1-dichloro-TPSCp) with sodium.The reaction of II with MeI and XSiMe2Cl (X = H, Me, Cl
- Joo, Wan-Chul,Hong, Jang-Hwan,Choi, Seok-Bong,Son, Hae-Eun,Kim, Chang Hwan
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- A Novel Silanediyl-Germanediyl (Silylene-Germylene) Exchange in 1,1-Dimethyl-2,3,4,5-tetraphenyl-1-germacyclopentadiene
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Photochemically generated dimethylsilanediyl reacts with 1,1-dimethyl-2,3,4,5-tetraphenyl-1-germacyclopentadiene to bring about a silanediyl-germanediyl exchange.
- Hawari, Jalal A.,Griller, David
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p. 1160 - 1161
(2007/10/02)
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- REACTIONS OF SILYLENES WITH 1,4-DIPHENYL-1,3-BUTADIENE AND 1-METHYL-1,2,3,4,5-PENTAPHENYLSILOLE. A NOVEL SILYLENE-SILYLENE EXCHANGE REACTION
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Thermally generated dimethylsilylene reacts with 1,4-diphenyl-1,3-butadiene to give 1,1-dimethyl-4,5-diphenyl-1-silacyclo-2-pentene.A mechanism involving homolytic C-C bond cleavage of the intermediate vinylsilacyclopropane is suggested.Dimethylsilylene also undergoes a novel silylene-silylene exchange reaction with 1-methyl-1,2,3,4,5-pentaphenylsilole.
- Sakurai, Hideki,Kobayashi, Yoshiteru,Sato, Ryuji,Nakadaira, Yasuhiro
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p. 1197 - 1200
(2007/10/02)
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