- Synthesis and characterization of poly(silole-pyridine)
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New poly(silole-pyridine) was designed and synthesized. Polymer was obtained by Yamamoto coupling reaction. The structure of obtained polymer was characterized by the spectroscopic methods such as FT-IR and 1H-NMR. The resulting polymer was sol
- Cheon, Ye Rim,Lee, Yun-Ji,Park, Jeong Cheol,Hwang, Jaeyoung,Shin, Sung-Chul,Kim, Yun-Hi
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- Synthesis and characterization of new poly(silole-fluorene) copolymers
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New poly(silole-fluorene) copolymers were designed and synthesized. Copolymers were obtained by Suzuki coupling reaction with different ratio of fluorene and silole. The obtained copolymers were characterized by the spectroscopic methods such as FT-IR and
- Lee, Yun-Ji,Park, Jeong Cheol,Yun, Hui-Jun,Park, Jong-Man,Kim, Yun-Hi
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- Synthesis and cure kinetics of diphenyl(diphenylethynyl)silane monomer
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Diphenyl(diphenylethynyl)silane ((ph-C≡C)2-Si-ph 2) (DPDPES) was synthesized by the Grignard reaction. The corresponding isothermal and non-isothermal cure kinetics of DPDPES were analyzed by using differential scanning calorimetry (
- Tan, Dexin,Wang, Yanli,Li, Zhong,Xing, Honglong
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- Synthesis of 1,1-Diisopropyl- or -Diphenyl -2,5-dibromo- or -bis(trimethylsilyl)-3,4-diphenyl-siloles and the Electrochemical Properties as Anode Materials for Lithium-Ion Battery
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Intramolecular cyclization of 1,1-diisopropyl- or diphenyl-bis(phenylethynyl)-silanes (2a and 2b) followed by bromination or trimethylsilylation were carried out to yield 1,1-diisopropyl- or -diphenyl-3,4-diphenyl-2,5-dibromo-siloles (3a and 3b) and 1,1-d
- Cho, Yoon-ho,Jung, Young Min,Park, Young Tae
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p. 380 - 387
(2020/12/28)
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- Role of C, S, Se and P donor ligands in copper(i) mediated C-N and C-Si bond formation reactions
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The first comparative study of C, S, Se and P donor ligands-supported copper(i) complexes for C-N and C-Si bond formation reactions are described. The syntheses and characterization of eight mononuclear copper(i) chalcogenone complexes, two polynuclear co
- Srinivas, Katam,Prabusankar, Ganesan
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p. 32269 - 32282
(2018/09/29)
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- One-pot desilylation-Sonogashira coupling
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Coupling of diethynyldiphenylsilane (1) with aryl halides under Sonogashira conditions affords the symmetrical diarylacetylenes bis(2-methylpyridin-5-yl)acetylene (2), bis(4-fluorophenyl)acetylene (3) and bis(4-trifluoromethylphenyl) acetylene (4) in 60% to 82% yield. In the case of 2, the by-product bis(2-methylpyridin-5-yl)butadiyne (2a) was isolated in 12% yield. The occurring desilylation reaction was investigated by treating bis(phenylethynyl)diphenylsilane (5) under the same conditions. The formation of 1-fluoro-4-(phenylethynyl)benzene (6), 1-trifluoromethyl- 4-(phenylethynyl)benzene (7) and (tetrafluoropyridin- 4-yl)ethynylbenzene (8) in 70 to 84% yield and the cleavage of hexaphenylcyclotrisiloxane were observed in all cases.
- Horstmann, Jan,Reger, Stefanie,Neumann, Beate,Stammler, Hans-Georg,Mitzel, Norbert W.
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p. 489 - 495
(2017/07/27)
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- A new and efficient route for the synthesis of alkynyl functionalized silicon derivatives
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The iridium-based catalytic system, [{Ir(μ-Cl)(CO)2} 2]/NEt(i-Pr)2, was examined in the coupling reaction of iodotrisubstituted silanes (R3SiI) with various terminal arylalkynes (R1CCH). Under optimum
- Kownacki, Ireneusz,Orwat, Bartosz,Marciniec, Bogdan,Kownacka, Agnieszka
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supporting information
p. 548 - 550
(2014/01/06)
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- Iridium-promoted conversion of chlorosilanes to alkynyl derivatives in a one-pot reaction sequence
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By making use of the catalytic potential of the iridium system [{Ir(μ-Cl)(CO)2}2]/NEt(i-Pr)2 in the synthesis of silyl-functionalized alkynes via silylative coupling of terminal alkynes/diynes with iodosilanes, we propose
- Kownacki, Ireneusz,Orwat, Bartosz,Marciniec, Bogdan
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supporting information
p. 3051 - 3059
(2014/07/08)
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- Dehydrogenative coupling between hydrosilanes and alkynes catalyzed by alkoxides, alkylmetals, and metalamides
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The selective dehydrogenative coupling reaction between phenylsilane and ethynylbenzene occurred in the presence of some homogeneous base catalysts such as alkoxides, alkyl compounds, and the amides of alkali metals or barium. The order of the catalytic activities was Ba(OR)2 > LiN(SiMe3)2 ~ n -BuLi > LiOEt. Barium alkoxide showed the highest activity and selectivity for the reaction, and gave the polymer poly[(phenylsilylene)ethynylene-1,3-phenyleneethynylene] in the reaction of phenylsilane with m-diethynylbenzene. The correlation between the catalytic activities and the catalyst basicities was discussed, and a reaction mechanism involving both the metal acetylide and the metal hydride was proposed.
- Ishikawa, Jun-Ichi,Itoh, Masayoshi
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p. 454 - 461
(2007/10/03)
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- Copper(I) chloride catalyzed cross-dehydrocoupling reactions between silanes and ethynyl compounds. A new method for the copolymerization of silanes and alkynes
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In the presence of an amine, copper(I) chloride is an effective catalyst for the cross-dehydrocoupling of silanes with alkynes.The reactions proceed at useful rates above 100 deg C, but rates drop dramatically on going from 1o to 2o
- Liu, Hua Qin,Harrod, John F.
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p. 1100 - 1105
(2007/10/02)
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