Object To provide a method for producing a bis-quaternary ammonium salt efficiently and a novel synthetic intermediate thereof.
Solution The present invention relates to a method for producing a bis-quaternary ammonium salt represented by a general formula [3] which comprises reacting a disulfonic acid ester represented by a general formula [1] (in the formula, definitions of two R
1
's and T are as described in claim
1
) with a tertiary amine represented by a general formula [2] (in the formula, definitions of R
3
to R
5
are as described in claim
1
), and a disulfonic acid ester represented by a general formula [1′] (in the formula, two R
16
's represent independently a halogen atom or a C1-C3 fluoroalkyl group, and two m's represent independently an integer of 1 to 5).
提供一种高效生产双季
铵盐和其新型合成中间体的方法。本发明涉及一种生产由通用式[3]表示的双季
铵盐的方法,包括将由通用式[1]表示的二
磺酸酯(在该式中,两个R1和T的定义如权利要求1中所述)与由通用式[2]表示的三级胺(在该式中,R3到R5的定义如权利要求1中所述)以及由通用式[1']表示的二
磺酸酯(在该式中,两个R16独立表示卤原子或C1-C3氟烷基,两个m独立表示1至5的整数)反应。