NEW PROCESS FOR THE SYNTHESIS OF 2,3,3,3-TETRAFLUOROPROPENE (1234YF) AND 2,3-DICHLORO-1,1,1-TRIFLUOROPROPANE (243DB)
申请人:Fujian Yongjing Technology Co., Ltd.
公开号:EP3822245A1
公开(公告)日:2021-05-19
The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbine generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), wherein the initial starting materials are selected from the group consisting of compound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane). The compound 123 (2,2-dichloro-1,1,1-trifluoroethane is preferred as the initial starting material. In particular, the process of the invention involves a carbene generation step, and wherein the carbene formed is further reacted towards the targeted compounds of the invention, especially towards the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and finally towards the compound 2,3,3,3-tetrafluoropropene (1234yf).
本发明涉及一种制造
2,3,3,3-四氟丙烯(1234yf)化合物的新工艺。化合物 1234yf 是最新的制冷剂,具有零 OPD(
臭氧消耗潜能值)和零 GWP(全球变暖潜能值)。因此,本发明涉及一种涉及碳生成路线的工艺,用于制造化合物
2,3,3,3-四氟丙烯(1234yf)、化合物 243db(2、
2,3-二氯-1,1,1-三氟丙烷)和化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)的化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)的化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)。本发明还涉及一种制造化合物
2,3,3,3-四氟丙烯(1234yf)的工艺,其中化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)作为制造化合物
2,3,3,3-四氟丙烯(1234yf)的起始原料。此外,本发明还涉及一种化合物
2,3,3,3-四氟丙烯(1234yf)和化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)的生产工艺、其中初始起始原料选自由化合物 123(2,2-二
氯-1,1,1-
三氟乙烷)、化合物 124(2-
氯-
1,1,1,2-四氟乙烷)和化合物 125(
五氟乙烷)组成的组。化合物 123(2,2-二
氯-1,1,1-
三氟乙烷)是首选的初始起始原料。特别是,本发明的工艺包括碳烯生成步骤,其中生成的碳烯进一步与本发明的目标化合物反应,特别是与化合物 243db(
2,3-二氯-1,1,1-三氟丙烷)反应,最后与化合物
2,3,3,3-四氟丙烯(1234yf)反应。