Chemoselective hydrogenation of functionalized nitroarenes and imines by using carbon nanofiber-supported iridium nanoparticles

Yukihiro Motoyama, Masahiro Taguchi, Nelfa Desmira, Seong Ho Yoon, Isao Mochida, Hideo Nagashima

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The reaction of three types of carbon nanofibers (CNFs; platelet: CNF-P, tubular: CNF-T, herringbone: CNF-H) with Ir4(CO)12 in mesitylene at 165 °C provided the corresponding CNF-supported iridium nanoparticles, Ir/CNFs (Ir content=2.3-2.6 wt. %). Transmission electron microscopy (TEM) studies of these Ir/CNF samples revealed that size-controlled Ir nanoparticles (average particle size of 1.1-1.5 nm) existed on the CNFs. Among the three Ir/CNF samples, Ir/CNF-T showed an excellent catalytic activity and chemoselectivity towards hydrogenation of functionalized nitroarenes and imines; the corresponding aniline derivatives were obtained with high turnover numbers at ambient temperature under 10 atm of H2, and the catalyst is reusable. Ir/CNF-T was also effective for the reductive N-alkylation of anilines with carbonyl compounds.

Original languageEnglish
Pages (from-to)71-74
Number of pages4
JournalChemistry - An Asian Journal
Volume9
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

Fingerprint

Nanofibers
Iridium
Carbon nanofibers
Imines
Hydrogenation
Nanoparticles
Aniline Compounds
Carbon
Carbonyl compounds
Alkylation
Carbon Monoxide
Platelets
Transmission Electron Microscopy
Particle Size
Sample Size
Catalyst activity
Blood Platelets
Particle size
Transmission electron microscopy
Derivatives

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Organic Chemistry

Cite this

Chemoselective hydrogenation of functionalized nitroarenes and imines by using carbon nanofiber-supported iridium nanoparticles. / Motoyama, Yukihiro; Taguchi, Masahiro; Desmira, Nelfa; Yoon, Seong Ho; Mochida, Isao; Nagashima, Hideo.

In: Chemistry - An Asian Journal, Vol. 9, No. 1, 01.01.2014, p. 71-74.

Research output: Contribution to journalArticle

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AU - Yoon, Seong Ho

AU - Mochida, Isao

AU - Nagashima, Hideo

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AB - The reaction of three types of carbon nanofibers (CNFs; platelet: CNF-P, tubular: CNF-T, herringbone: CNF-H) with Ir4(CO)12 in mesitylene at 165 °C provided the corresponding CNF-supported iridium nanoparticles, Ir/CNFs (Ir content=2.3-2.6 wt. %). Transmission electron microscopy (TEM) studies of these Ir/CNF samples revealed that size-controlled Ir nanoparticles (average particle size of 1.1-1.5 nm) existed on the CNFs. Among the three Ir/CNF samples, Ir/CNF-T showed an excellent catalytic activity and chemoselectivity towards hydrogenation of functionalized nitroarenes and imines; the corresponding aniline derivatives were obtained with high turnover numbers at ambient temperature under 10 atm of H2, and the catalyst is reusable. Ir/CNF-T was also effective for the reductive N-alkylation of anilines with carbonyl compounds.

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