Catalytic atom-transfer radical cyclization by copper/bipyridine species encapsulated in polysiloxane gel

Yukihiro Motoyama, Kazuyuki Kamo, Akihiro Yuasa, Hideo Nagashima

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Novel polysiloxane gel, in which CuCl/bipyridine species are immobilized, is prepared by treatment of polymethylhydrosiloxane with 4,4′-bis[(2- propenyl)oxy]-2,2′-bipyridine and 1,5-hexadine in the presence of Karstedt′s catalyst followed by addition of CuCl. This polysiloxane gel acts as a reusable catalyst in the atom-transfer radical cyclization of α-halogenated acetamide derivatives in high turnover numbers without allowing leakage of the metal species.

Original languageEnglish
Pages (from-to)2256-2258
Number of pages3
JournalChemical Communications
Volume46
Issue number13
DOIs
Publication statusPublished - Mar 25 2010

Fingerprint

Siloxanes
Cyclization
Silicones
Copper
Gels
Atoms
Catalysts
Metals
Derivatives
acetamide
polymethylhydrosiloxane

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

Catalytic atom-transfer radical cyclization by copper/bipyridine species encapsulated in polysiloxane gel. / Motoyama, Yukihiro; Kamo, Kazuyuki; Yuasa, Akihiro; Nagashima, Hideo.

In: Chemical Communications, Vol. 46, No. 13, 25.03.2010, p. 2256-2258.

Research output: Contribution to journalArticle

Motoyama, Yukihiro ; Kamo, Kazuyuki ; Yuasa, Akihiro ; Nagashima, Hideo. / Catalytic atom-transfer radical cyclization by copper/bipyridine species encapsulated in polysiloxane gel. In: Chemical Communications. 2010 ; Vol. 46, No. 13. pp. 2256-2258.
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