Toluene was mononitrated with good para-selectivity in the presence of clays etc. as catalysts and supports. It is found that bentonite is an cheap, efficient and clean catalyst.

• 粘土等固体催化剂和载体在芳烃甲苯硝化反应中表现出强的对位选择性催化能力和催化活性,皂土等粘土是一种廉价有效的清洁型催化剂。