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<p>It has been discovered that sulfated betaine works well as a solid acid catalyst for the protection of amine, aldehydes, and hydroxy groups with acetic anhydride under neat conditions. The sustainability, ease of work-up, economic feasibility, and biodegradability of this novel catalytic approach are its appealing attributes. Infrared spectroscopy, wide-angle X-ray scattering analysis, and scanning electron microscopy were used to evaluate the sulfonated betaine catalyst. It clearly indicates functionalization of sulfonation. Without seeing a noticeable decrease in activity, the catalyst might be used six times. Moreover, the desired products might be obtained without the necessity for chromatographic separations.</p>

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Protection of amines, aldehydes, and hydroxy compounds with acetic anhydride in the presence of sulfated betaine

  • 期刊论文

  • 发表日期：

    2025年6月17日

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  • M. Indhupriya,
  • Reddi Mohan Naidu Kalla,
  • T. Sailaja Rani,
  • Atif Mossad Ali,
  • Jaewoong Lee

摘要

It has been discovered that sulfated betaine works well as a solid acid catalyst for the protection of amine, aldehydes, and hydroxy groups with acetic anhydride under neat conditions. The sustainability, ease of work-up, economic feasibility, and biodegradability of this novel catalytic approach are its appealing attributes. Infrared spectroscopy, wide-angle X-ray scattering analysis, and scanning electron microscopy were used to evaluate the sulfonated betaine catalyst. It clearly indicates functionalization of sulfonation. Without seeing a noticeable decrease in activity, the catalyst might be used six times. Moreover, the desired products might be obtained without the necessity for chromatographic separations.