p-Nitrobenzaldehyde reacts with some active methylene compounds in the presence of a strong base at low temperatures to give p-substituted nitrobenzenes by the two-step course involving the initial formation of the aldol adducts and the subsequent displacement of the carbinol moieties with excess carbanions.
对硝基苯甲醛在强碱存在下在低温下与一些活性亚甲基化合物反应,通过两步过程得到对取代
硝基苯,包括初始形成羟醛加合物和随后用过量碳负离子置换
甲醇部分.