Gas-phase pyrolysis in organic synthesis. Part 2. Novel rearrangement of esters and ethers into aryl ketones
作者:Nouria A. Al-Awadi、Kamini Kaul、Osman M.E. El-Dusouqui
DOI:10.1139/cjc-76-12-1922
日期:——
The formate ester of benzoin (1) and the methyl ethers of benzoin and anisoin (2, 3) have been converted separately under thermal gas-phase conditions cleanly into 1,2-diarylethanone and have given, respectively, the following Arrhenius log A (s -1 ) and Ea (kJ mol -1 ): 10.11 and 132.0, 11.29 and 173.0, and 11.85 and 151.1. A plausible mechanism is suggested to account for these transformations based
安息香 (1) 的甲酸酯和安息香和茴香醚的甲醚 (2, 3) 在热气相条件下分别干净地转化为 1,2-二芳基乙酮,并分别给出了以下 Arrhenius log A ( s -1 ) 和 Ea (kJ mol -1 ):10.11 和 132.0、11.29 和 173.0,以及 11.85 和 151.1。提出了一种合理的机制来解释基于反应动力学和产物的这些转变。