Aromatic fluorine chemistry. Part 4. Preparation of 2.6-difluoroaniline
作者:R.G. Pews、J.A. Gall
DOI:10.1016/s0022-1139(00)80345-0
日期:1991.5
1-Chloro-3,5-difluorobenzene prepared via KF exchange on 1,3,5-trichlorobenzene is dichlorinated and nitrated in a single reactor to a mixture of trichlorodifluoronitrobenzenes. The latter are reduced to ∼4:1 isomeric mixture of 2,6-difluoroaniline and 2,4-difluoroaniline.
描述了由1,3,5-三氯苯制备2,6-二氟苯胺。通过在1,3,5-三氯苯上的KF交换制备的1-氯-3,5-二氟苯在单个反应器中被二氯化和硝化成三氯二氟硝基苯的混合物。后者被还原为2,6-二氟苯胺和2,4-二氟苯胺的〜4:1异构体混合物。