Výsledky vyhledávání - "Jang Hwan Hong"

Akademický článek

Carbosilane and Carbosiloxane Dendrimers

Publikováno v: Molecules, Vol 14, Iss 9, Pp 3719-3730 (2009)

This review focuses on novel carbosilane dendrimers containing branches with Si-C and Si-O-C bonds. Introduction of organic moieties into the dendrimers is performed by hydrosilation of carbon-carbon double/triple bonds. Versatile organic or organome

Externí odkaz: https://doaj.org/article/805197939ae54de68b339ba6efb4fef3

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Akademický článek

Synthesis of 1,1′-Bis(1-Methyl/Chloro-2,3,4,5-Tetraphenyl-1-Silacyclopentadienyl) [Ph4C4Si(Me/Cl)-(Me/Cl)SiC4Ph4] from Silole Anion [MeSiC4Ph4]−•[Li+ or Na+] and Silole Dianion [SiC4Ph4]2−•2[Li+]; Oxidative Coupling of Silole Anion [MeSiC4Ph4]−•[Li+ or Na+] by Ferrous Chloride (FeCl2) and Oxidative Coupling and Chlorination of Silole Dianion [SiC4Ph4]2−•2[Li+] by Cupric Chloride (CuCl2)

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 24, Iss 20, p 3772 (2019)

A reaction of silole anion {[MeSiC4Ph4]−•[Li+ or Na+] (1) with anhydrous ferrous chloride (FeCl2) in THF (tetrahydrofuran) gives 1,1′-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadienyl) [Ph4C4Si(Me)-(Me)SiC4Ph4] (2) with precipitation of i

Externí odkaz: https://doaj.org/article/d76ab85e267740039f0f4e988ce0a0fe

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Akademický článek

Dissociation of the Disilatricyclic Diallylic Dianion [(C4Ph4SiMe)2]−2 to the Silole Anion [MeSiC4Ph4]− by Halide Ion Coordination or Halide Ion Nucleophilic Substitution at the Silicon Atom

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 16, Iss 10, Pp 8451-8462 (2011)

The reductive cleavage of the Si-Si bond in 1,1-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadiene) [(C4Ph4SiMe)2] (1) with either Li or Na in THF gives the silole anion [MeSiC4Ph4]− (2). The head-to-tail dimerization of the silole anion 2 give

Externí odkaz: https://doaj.org/article/9131775ee24d4ec2b2edc916c4b8f4e7

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Akademický článek

Synthesis and NMR-Study of the 2,3,4,5-Tetraethylsilole Dianion [SiC4Et4]2−•2[Li]+

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 16, Iss 9, Pp 8033-8040 (2011)

The previously unknown silole dianion [SiC4Et4]2−•2[Li]+ (3) was prepared by the sonication of 1,1-dichloro-2,3,4,5-tetraethyl-1-silacyclopentadiene [Cl2SiC4Et4, 2] with more than four equivalent of lithium in THF. 1H-, 13C-, and 29Si-NMR data of

Externí odkaz: https://doaj.org/article/7433f8afd37b423b8d8d84e5c39accad

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Akademický článek

Two Carbonylations of Methyl Iodide and Trimethylamine to Acetic acid and N,N-Dimethylacetamide by Rhodium(I) Complex: Stability of Rhodium(I) Complex under Anhydrous Condition.

Autor: Jang-Hwan Hong¹ jhong@pcu.ac.kr

Publikováno v: Catalysts (2073-4344). 2015, Vol. 5 Issue 4, p1969-1982. 14p.

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Synthesis of N,N-Dimethylacetamide from Carbonylation of Trimethylamine by Rhodium(I) Complex Under Anhydrous Condition

Autor: Jang-Hwan Hong

Publikováno v: Journal of the Chosun Natural Science. 8:235-243

Rhodium(I)-complex of [Rh(CO) 2 I 2- ] catalyzed carbonylation of anhydrous-trimethylamine in the presence of methyliodide to give DMAC (N,N-dimethylacetamide) in no solvent. The catalyst had been reused 20 times, the analyses anddistillation of coll

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f145d49132c34294e4eb24e08322ccc
https://doi.org/10.13160/ricns.2015.8.4.235

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Akademický článek

Synthesis and NMR-Study of 1-Trimethylsilyl Substituted Silole Anion [Ph4C4Si(SiMe3)]^-•[Li]⁺ and 3-Silolenide 2,5-carbodianions {[Ph4C4Si(n-Bu)2]^-2•2[Li]⁺, [Ph4C4Si(t-Bu)2]^-2•2[Li]⁺} via Silole Dianion [Ph4C4Si]^-2•2[Li]⁺

Autor: Jang-Hwan Hong¹ jhong@pcu.ac.kr

Publikováno v: Molecules. Sep2013, Vol. 18 Issue 9, p10568-10579. 12p. 2 Diagrams, 3 Charts.

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Akademický článek

Dissociation of the Disilatricyclic Diallylic Dianion [(C4Ph4SiMe)2]^-2 to the Silole Anion [MeSiC4Ph4]^- by Halide Ion Coordination or Halide Ion Nucleophilic Substitution at the Silicon Atom

Autor: Jang-Hwan Hong¹ jhong@pcu.ac.kr

Publikováno v: Molecules. Oct2011, Vol. 16 Issue 10, p8451-8462. 12p. 9 Diagrams.

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Akademický článek

Synthesis and NMR-Study of the 2,3,4,5-Tetraethylsilole Dianion [SiC4Et4]^2-•2[Li]⁺.

Autor: Jang-Hwan Hong¹ jhong@pcu.ac.kr

Publikováno v: Molecules. Sep2011, Vol. 16 Issue 9, p8033-8040. 8p. 3 Diagrams, 4 Charts.

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Akademický článek

Carbosilane and Carbosiloxane Dendrimers.

Autor: Chungkyun Kim¹ ckkim@dau.ac.kr, Jang Hwan Hong²

Publikováno v: Molecules. Sep2009, Vol. 14 Issue 9, p3719-3730. 12p. 9 Diagrams.

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