申请人:ETH ZURICH
公开号:US20210163408A1
公开(公告)日:2021-06-03
A process for preparing a polyfluorinated compound of formula Ar—R
1
(I), wherein Ar—R
1
(I) is an aromatic ring system
wherein R
1
is selected from the group consisting of SF
4
Cl, SF
3
, SF
2
CF
3
, TeF
5
, TeF
4
CF
3
, SeF
3
, IF
2
, SeF
2
CF
3
, and IF
4
, X
2
is N or CR
2
, X
3
is N or CR
3
, X
4
is N or CR
4
, X
5
is N or CR
5
, X
6
is N or CR
6
, and the total number of nitrogen atoms in the aromatic ring system is between 0 and 3, wherein R
2
, R
3
, R
4
, R
5
and R
6
are independently selected from the group consisting of hydrogen, fluoro, chloro, bromo, nitro, trifluoromethyl, 2,2,2-trifluoroethyl, pentafluorosulfanyl, phthalimido, azido, benzyloxy, trifluoromethoxy, 2,2,2-trifluoroethoxy, methoxycarbonyl, ethoxycarbonyl, methylcarbonyl, ethylcarbonyl, acetoxy, t-butyl, phenylcarbonyl, benzylcarbonyl, 3-trifluoromethylphenyl, phenylsulfonyl, methylsulfonyl, chlorophenyl, methyldoxolonyl, methyl, isopropyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, fluoromethyl, fluoroethyl and phenyl.