1.前言 苯与甲烷通常是惰性很强的物质,尤其是在苯与甲烷之间,一般不容易发生化学反应。Olah曾报导,以HF-SbF_3为催化剂,苯可与甲烷直接发生甲基化反应而生成甲苯。但甲苯的收率仅为0.1％,且催化剂本身也有强烈的腐蚀性。Loffler等人以Ni/SiO_2为催化剂,在300℃下发现甲烷可与苯反应,但甲苯收率也只有约7％。 最近我们发现,无水三氯化铝及某些金属氯化物以适当的方式处理后所得到的复合物,可有效地催化苯与甲烷的反应,主要产物有甲苯和二甲苯等。实验结果表明,这些复合物对 1. Introduction benzene and methane are usually very inert substances, especially between benzene and methane, and are generally not prone to chemical reactions. Olah has reported that with HF-SbF_3 as a catalyst, benzene can be directly methylated with methane to generate toluene. However, the yield of toluene is only 0.1%, and the catalyst itself is also strongly corrosive. Loffler et al. Found that methane can react with benzene at 300 ° C using Ni / SiO 2 as a catalyst, but the toluene yield is only about 7%. Recently, we found that anhydrous aluminum trichloride and some metal chlorides treated in an appropriate manner resulting complex can effectively catalyze the reaction of benzene and methane, the main products are toluene and xylene. Experimental results show that these complex pairs