Scholarlink

Abstract <p>Stable tin(II) (<sup>dipp</sup>AmP)<sub>2</sub>Sn (<b>I</b>) and germanium(II) (<sup>dipp</sup>AmP)<sub>2</sub>Ge (<b>II</b>) complexes based on 4,6-di-<i>tert</i>-butyl-<i>N</i>-(2,6-diisopropylphenyl)-<i>o</i>-aminophenol were synthesized and characterized. The compounds are monomeric and contain, in addition to covalent element(II)–oxygen bonds, additional coordination bonds involving the secondary amino groups of the chelating ligand. The synthesized compounds were tested as homogeneous catalysts for the hydroboration of various substituted aldehydes to the corresponding boronate esters. Optimization of the catalytic reaction conditions made it possible to reduce the catalyst loading to 0.02 mol % while maintaining quantitative conversion under mild conditions. The molecular structure of complex <b>II</b> was established by X-ray diffraction analysis (CCDC no. 2423247, <b>II</b>).</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Bis(o-Aminophenolato)germanium(II) and Tin(II) Complexes in Hydroboration Reactions of Aromatic Aldehydes

  • 期刊论文

  • 发表日期：

    2025年4月1日

查看全文
  • K. V. Arsen’eva,
  • A. V. Klimashevskaya,
  • A. V. Cherkasov,
  • A. V. Piskunov

摘要

Abstract

Stable tin(II) (dippAmP)2Sn (I) and germanium(II) (dippAmP)2Ge (II) complexes based on 4,6-di-tert-butyl-N-(2,6-diisopropylphenyl)-o-aminophenol were synthesized and characterized. The compounds are monomeric and contain, in addition to covalent element(II)–oxygen bonds, additional coordination bonds involving the secondary amino groups of the chelating ligand. The synthesized compounds were tested as homogeneous catalysts for the hydroboration of various substituted aldehydes to the corresponding boronate esters. Optimization of the catalytic reaction conditions made it possible to reduce the catalyst loading to 0.02 mol % while maintaining quantitative conversion under mild conditions. The molecular structure of complex II was established by X-ray diffraction analysis (CCDC no. 2423247, II).