申请人:Indusegaram Sutharsiny
公开号:US20090043108A1
公开(公告)日:2009-02-12
A method of preparing a sultine of formula (V) from a dihalogeno compound of formula (IV) is provided.
The method comprises reacting the dihalogeno compound (IV) with a hydroxymethanesulfinate salt in a DMSO solvent,
wherein:
R
1
, R
2
, R
3
and R
4
are each independently selected from hydrogen, hydroxyl, C
1-20
alkyl, C
1-20
alkoxy, amino, C
1-20
alkylamino, di(C
1-20
alkyl)amino, halogen, cyano, thiol, C
1-20
alkylthio, nitro, C
1-20
alkylcarboxy, C
1-20
alkylcarbonyl, C
1-20
alkoxycarbonyl, C
1-20
alkylcarbonyloxy, C
1-20
alkylcarbonylamino, C
5-20
aryl, C
5-20
arylalkyl, C
5-20
arylalkoxy, C
5-20
heteroaryl, C
5-20
heteroaryloxy, C
5-20
heteroarylalkoxy or C
5-20
heteroarylalkyl; and
X is Cl, Br or I.
提供了一种从公式(IV)的二卤代化合物制备公式(V)的
硫代
磺酸盐的方法。该方法包括将二卤代化合物(IV)与
DMSO溶剂中的羟
甲磺酸盐反应,其中:R1,R2,R3和R4各自独立地选自
氢,羟基,C1-20烷基,C1-20烷
氧基,
氨基,C1-20烷基
氨基,二(C1-20烷基)
氨基,卤素,
氰基,
硫醇,C1-20烷基
硫基,硝基,C1-20烷基羧基,C1-20烷基羰基,C1-20烷
氧羰基,C1-20烷基羰
氧基,C1-20烷基羰
氨基,C5-20芳基,C5-20芳基烷基,C5-20芳基烷
氧基,C5-20杂芳基,C5-20杂芳
氧基,C5-20杂芳基烷
氧基或C5-20杂芳基烷基;而X是Cl,Br或I。