专利号:US-4876376-A 优先权日:1983-06-23 标题 :Process for the halogenation, nitration and fluorination of aromatic derivatives 发明人:DESBOIS MICHAEL; DISDIER CAMILLE 权利人:RHONE POULENC SPEC CHIM 摘要:A process for the halogenation (bromination or chlorination)/nitration/fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with a halogen and a nitrating agent in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
专利号:CN-117865771-A 优先权日:2022-03-28 标题:A kind of synthesis method of 2,3-dichlorotoluenetrifluoromethane