For the first time, dehydrochlorination and dehydrofluorination reactions are studied on the same substrate, 3-chloro-1,1,1,3-tetrafluorobutane, employing nanoscopic metal fluorides AlF₃, MgF₂, CaF₂, SrF₂, and BaF₂ as catalysts that are prepared according the fluorolytic sol–gel synthesis. AlF₃ is exclusively selective toward dehydrofluorination, whereas BaF₂ is 100% selective toward dehydrochlorination. The acid–base character of the catalysts is investigated and, as a result, mechanistic proposals for the dehydrofluorination and the dehydrochlorination are given. Thus, at high conversion level, selective catalysts for both dehydrofluorination and dehydrochlorination on the same substrate have been developed.

首次，脱氯化氢和脱氟化氢反应研究了在同一基板，3-氯-1,1,1,3-四氟丁烷，采用纳米级金属氟化物的AlF ₃，氟化镁₂，的CaF ₂，SRF ₂和BaF ₂作为根据氟化溶胶-凝胶合成制备的催化剂。AlF ₃仅对脱氟化氢具有选择性，而BaF ₂对脱氯化氢具有100％的选择性。研究了催化剂的酸碱特性，因此，给出了脱氟化氢和脱氯化氢的机械方案。因此，在高转化率下，已经开发了用于在同一基材上进行脱氟化氢和脱氯化氢的选择性催化剂。