Abstract

This study investigated the effects of ionol (2,6-di-tert-butyl-4-methylphenol) and CCl₄ as inhibitors of radical reactions in propane oxidation with oxygen in the presence of co-reductants. These compounds inhibit the activity of a Pd/C–FeSO₄–H₂ catalytic system. Homogeneous catalytic systems based on Pd or Rh compounds, cocatalysts, and co-reductants promote molecular mechanisms for the reaction. The only exception is a Pd(α,α-bipy)Cl₂–FeSO₄–CO system, in which both ionol and CCl₄ act as inhibitors.

中文翻译：

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丙烷的直接催化氧化：抑制剂的作用

摘要

本研究调查了紫罗兰醇（2,6-二叔丁基-4-甲基苯酚）和 CCl ₄作为在共还原剂存在下丙烷氧化与氧气的自由基反应抑制剂的作用。这些化合物抑制 Pd/C-FeSO ₄ -H ₂催化体系的活性。基于 Pd 或 Rh 化合物、助催化剂和共还原剂的均相催化体系促进了反应的分子机制。唯一的例外是 Pd(α,α-bipy)Cl ₂ –FeSO ₄ –CO 体系，其中 ionol 和 CCl ₄都作为抑制剂。