作者:Fei Yan、Yushuai Sang、Yunfei Bai、Kai Wu、Kai Cui、Zhe Wen、Fuhang Mai、Zewei Ma、Linhao Yu、Hong Chen、Yongdan Li
DOI:10.1016/j.cattod.2019.07.018
日期:2020.9
Re2O7 is used to convert guaiacol in ethanol at 320 °C. Guaiacol is deoxygenated and alkylated, and the major products are phenol and alkylphenols (including ethylphenol, diethylphenol, diisopropylphenol, di-tert-butylphenol and 2,6-di-tert-butyl-4-ethylphenol), accounting for 97 mol% of all products. Both catechol and phenol are the intermediates of guaiacol demethoxylation. Among the substituents
Re 2 O 7用于在320°C下将愈创木酚转化为乙醇。愈创木酚经过脱氧和烷基化处理,主要产物为苯酚和烷基酚(包括乙基苯酚,二乙基苯酚,二异丙基苯酚,二叔丁基苯酚和2,6-二叔丁基-4-乙基苯酚),占全部的97摩尔%。产品。儿茶酚和苯酚都是愈创木酚脱甲氧基化的中间体。在取代基中,乙基直接由乙醇提供,而异丙基和叔丁基是通过逐步将甲基加成至乙基而形成的。另外,Re 2 O 7对于苯环的饱和具有微不足道的活性,因此它不会引起还原剂的过度消耗。愈创木酚脱甲氧基化的实际催化剂可能是ReIV-VI种。