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Abstract <p>Bromination of 2-hydroxybenzo[<i>e</i>][1,2]oxaphosphinine 2-oxide derivatives afforded the first representatives of mono- and dibrominated products: 3-bromo-2-hydroxy-[1,3]dioxolo[4′,5′:4,5]benzo[1,2-<i>e</i>][1,2]oxaphosphinine 2-oxide, 3-bromo-6,8-di-<i>tert</i>-butyl-2-hydroxybenzo[<i>e</i>][1,2]oxaphosphinine 2-oxide, 3,6-dibromo-2-hydroxy-5,7,8-trimethylbenzo[<i>e</i>][1,2]oxaphosphinine 2-oxide, 3,6-dibromo-2-hydroxy-7-methoxybenzo[<i>e</i>][1,2]oxaphosphinine 2-oxide. Structure of all the synthesized compounds was confirmed by <sup>1</sup>H, <sup>13</sup>C, <sup>31</sup>P NMR, IR spectroscopy, mass spectrometry (ESI-TOF), and elemental analysis data. Structure of 3,6-dibromo-2-hydroxy-5,7,8-trimethylbenzo[<i>e</i>][1,2]oxaphosphinine 2-oxide was additionally confirmed by single crystal X-ray crystallography.</p>

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Synthesis and Structure of Novel Bromine-Containing Derivatives of 2-Hydroxybenzo[e][1,2]oxaphosphinine 2-Oxides

  • 期刊论文

  • 发表日期：

    2025年10月31日

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  • Victoria I. Matveeva,
  • Alena V. Zalaltdinova,
  • Yuliya M. Sadykova,
  • Atabek K. Smailov,
  • Leysan R. Bakhtiozina,
  • Daria P. Gerasimova,
  • Viktor V. Syakaev,
  • Almir S. Gazizov,
  • Aleksandr R. Burilov

摘要

Abstract

Bromination of 2-hydroxybenzo[e][1,2]oxaphosphinine 2-oxide derivatives afforded the first representatives of mono- and dibrominated products: 3-bromo-2-hydroxy-[1,3]dioxolo[4′,5′:4,5]benzo[1,2-e][1,2]oxaphosphinine 2-oxide, 3-bromo-6,8-di-tert-butyl-2-hydroxybenzo[e][1,2]oxaphosphinine 2-oxide, 3,6-dibromo-2-hydroxy-5,7,8-trimethylbenzo[e][1,2]oxaphosphinine 2-oxide, 3,6-dibromo-2-hydroxy-7-methoxybenzo[e][1,2]oxaphosphinine 2-oxide. Structure of all the synthesized compounds was confirmed by 1H, 13C, 31P NMR, IR spectroscopy, mass spectrometry (ESI-TOF), and elemental analysis data. Structure of 3,6-dibromo-2-hydroxy-5,7,8-trimethylbenzo[e][1,2]oxaphosphinine 2-oxide was additionally confirmed by single crystal X-ray crystallography.