• Title/Summary/Keyword: Suzuki

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A new record of Rhododendron keiskei Miq. var. hypoglaucum Suto & Suzuki (Ericaceae) in Korea (한국 미기록 식물: 섬진달래(진달래과))

  • Yang, Jong-Cheol;Kwon, Yeong-Han;Ji, Seong-Jin;Shin, Chang-Ho
    • Korean Journal of Plant Taxonomy
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    • v.45 no.3
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    • pp.239-242
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    • 2015

  • Rhododendron keiskei Miq. var. hypoglaucum Suto & Suzuki (Ericaceae) was found in Yeosu-si, Jeollanam-do, Korea. This species is distinguished from related taxa in Korea by lepidote hairs entire, flower-bud terminal, inflorescences umbel-like racemes, corolla lepidot outside, white tinged with yellow. This taxon was named 'Seom-Jin-Dal-Lae' in Korean based on its habitat. We provide its description, illustrations, photographs and a key of related taxa in Korea.

  • https://doi.org/10.11110/kjpt.2015.45.3.239 인용 PDF KSCI

Suzuki-Miyaura Cross-coupling Reaction Catalyzed by Nickel Nanoparticles Supported on Poly(N-vinyl-2-pyrrolidone)/TiO2-ZrO2 Composite

  • Kalbasi, Roozbeh Javad;Mosaddegh, Neda
    • Bulletin of the Korean Chemical Society
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    • v.32 no.8
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    • pp.2584-2592
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    • 2011

  • Nickel nanoparticle-poly(N-vinyl-2-pyrrolidone)/$TiO_2-ZrO_2$ composite (Ni-PVP/$TiO_2-ZrO_2$) was prepared by in situ polymerization method. The physical and chemical properties of Ni-PVP/$TiO_2-ZrO_2$ were investigated by XRD, FT-IR, BET, TGA, SEM and TEM techniques. The catalytic performance of this novel heterogeneous catalyst was determined for the Suzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acid in the presence of methanol-water mixture as solvent. The effects of reaction temperature, the amount of catalyst, amount of support, solvent, and amount of metal for the synthesis of Ni-PVP/$TiO_2-ZrO_2$, were investigated as well as recyclability of the heterogeneous composite. The catalyst used for this synthetically useful transformation showed considerable level of reusability besides very good activity.

  • https://doi.org/10.5012/bkcs.2011.32.8.2584 인용 PDF KSCI