A polyfluoroalkylphosphonic acid ester represented by the general formula: C
n
F
2n+1
(CH
2
CF
2
)
a
(CF
2
CF
2
)
b
(CH
2
CH
2
)
c
P(O)(OR)
2
(R is an alkyl group having 1 to 4 carbon atoms, n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3) is produced by a process of reacting a polyfluoroalkyl iodide represented by the general formula: C
n
F
2n+1
(CH
2
CF
2
)
a
(CF
2
CF
2
)
b
(CH
2
CH
2
)
c
I with a trialkyl phosphite represented by the general formula: P(OR)
3
or by a process of reacting a polyfluoro-1-alkene represented by the general formula: C
n
F
2n+1
(CH
2
CF
2
)
a
(CF
2
CF
2
)
b
CH═CH
2
with a dialkyl phosphite represented by the general formula: (RO)
2
P(O)H.
通过将通用公式表示的多氟烷基
磷酸酯与通用公式表示的三烷基
磷酸酯反应,生产一种多氟烷基
磷酸酯,该多氟烷基
磷酸酯的通用公式为:CnF2n+1(
CH2CF2)a(
CF2CF2)b( )cP(O)(OR)2(R是具有1至4个碳原子的烷基基团,n是1至6的整数,a是1至4的整数,b是1至3的整数,c是1至3的整数)。或者通过将通用公式表示的多
氟-1-烯与通用公式表示的二烷基
磷酸酯反应,生产该多氟烷基
磷酸酯。