CAS: 661-95-0; 1,2-Dibromo-1,1,2,3,3,3-Hexafluoropropane

上下游产品

perfluoropropylene 1,1,1,3,3,3-hexafluoropropane HFC-227ca Bromine(I) trifluoromethanesulfonate perfluoropropylene 2-bromo-1,1,1,3,3,3-hexafluoro-2-trifluoromethyl-propane perfluoro-4,4-dimethyl-2-pentene 1-phenoxy-2-hydroperfluoropropane

六氟丙烯置于溴体系中,用99.41%的收率获得产物1,2-二溴六氟丙烷
参考文献: Processes For Producing Branched Fluoroalkyl Olefins[fr] Procédés De Production D'Oléfines Fluoroalkyliques Ramifiées
标题: Processes For Producing Branched Fluoroalkyl Olefins[fr] Procédés De Production D'Oléfines Fluoroalkyliques Ramifiées
摘要:本文介绍了生产分支氟烷基烯烃的过程.此外,还介绍了可用于生产分支氟烷基烯烃的新型卤代氟烷中间体.分支氟烷基烯烃的非限定性示例包括分支氟丁烯,例如1,3,4,4,4-五氟-3-三氟甲基丁-1-烯(hfo-1438Ezy).在某些方面,本文介绍了一种将4-溴-1,1,1,2,4-五氟-2-(三氟甲基)丁烷脱溴化为1,3,4,4,4-五氟-3-(三氟甲基)丁-1-烯(hfo-1438Ezy)的方法.

专利信息

专利号:US-4756739-A
优先权日:1985-12-21
标题 :Pyridine derivatives and the N-oxides thereof, and the use thereof as intermediates for the synthesis of plant protecting agents
发明人：FUSS ANDREAS; KOCH VOLKER
权利人:HOECHST AG
摘要:The compounds of the formula I (I) in which A denotes N or N->O, Z denotes O or NH, R denotes H, (halo)alkyl, (halo)alkenyl, (halo)alkynyl or alkoxycarbonyl, R1 denotes hydrogen, halogen, amino, -NHOH, hydroxyl, (substituted) phenylazo or a radical of the formulae Y=C=N-, Y1Y2C=N-, Y3NH- or K denotes 0 or 1, and m and n, independently of one another, denote a number from 1 to 4, with the proviso that, when Z-R denotes OH or NH2, (R1)n denotes at least one radical of the formula or represents two radicals, in the 5 or 6 position of the heterocyclic ring, which, in the 5 position, denote halogen and, in the 6 position, denote a radical of the group comprising halogen, amino, hydroxyl or phenylazo, which may be substituted as specified above, are valuable intermediates in the synthesis of plant protection agents.