Subporphyrinato Boron(III) Hydrides

Eiji Tsurumaki, Jooyoung Sung, Dongho Kim, Atsuhiro Osuka

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Subporphyrinato boron(III) hydrides were prepared by reduction of subporphyrinato boron(III) methoxides with diisobutylaluminum hydride (DIBAL-H) in good yields. The authenticity of the B-H bond has been unambiguously confirmed by a 1H NMR signal that appears as a broad quartet at -2.27 ppm with a large coupling constant with the central 11B, characteristic B-H infrared stretching frequencies, and single crystal X-ray diffraction analysis. Red shifts in the corresponding absorption and fluorescence profiles are accounted for in terms of the electron-donating nature of the B-hydride. The hydridic character of subporphyrinato boron(III) hydrides has been demonstrated by the production of H2 via reaction with water or HCl, and controlled reductions of aromatic aldehydes and imines in the presence of a catalytic amount of Ph3C[B(C6F5)4].

Original languageEnglish
Pages (from-to)1056-1059
Number of pages4
JournalJournal of the American Chemical Society
Volume137
Issue number3
DOIs
Publication statusPublished - 2015 Jan 28

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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