Process for the preparation of azidoperfluoroalkanes and N-polyfluoroalkyl azides
申请人:Ustav organicke chemie a biochemie AV CR, v.v.i.
公开号:US20190161452A1
公开(公告)日:2019-05-30
Process for the preparation of azidoperfluoroalkanes and azidopolyfluoroalkanes of general formula R
F
—N
3
, where R
F
is chosen from a group containing C
n
F
2n+1
, C
n
F
x
H
2n+1−x
, C
n
F
x
X
2n+1−x
or R
1
CF
2
CF
2
, where n is an integer in the range of 1 to 10, x is an integer in the range of 2 to 20, X is Cl, Br, or I, R
1
is C
1-10
alkyl, ArO, ArS, imidazolyl, benzimidazolyl, or pyrazolyl and Ar is phenyl or substituted phenyl, by the reaction of electrophilic azidation reagent of general formula R
2
—N
3
, where R
2
is n-C
4
F
9
SO
2
, ArSO
2
, Br, I, with synthetic equivalent of polyfluoroalkylated carbanion of general formula [R
F
]
−
.
通用公式RF—N3的叠氮全氟烷和叠氮多氟烷的制备过程,其中RF选择自包含CnF2n+1、CnFxH2n+1−x、CnFxX2n+1−x或R1CF2CF2的一组化合物,其中n为1至10范围内的整数,x为2至20范围内的整数,X为Cl、Br或I,R1为C1-10烷基、ArO、ArS、咪唑基、苯并咪唑基或吡唑基,Ar为苯基或取代苯基,通过亲电性叠氮试剂R2—N3的反应,其中R2为n-C4F9SO2、ArSO2、Br、I的通用公式,与通用公式[RF]−的多氟烷基化碳负离子的合成等效物的反应。