The present invention relates to a procedure for the oxidation of a thioether group to a sulfoxide group, with aqueous sodium percarbonate in the presence of a molybdenum salt as a catalyst. The procedure is of application to oxidize the thioether group of a compound (I), where R
1
is a C
1
-C
6
alkyl, a halogenated C
1
-C
6
alkyl, or —(CH
2
)
n
—OR
9
, where n is an integer between 1 and 6 and R
9
is H or a C
1
-C
6
alkyl; R
2
, R
3
, R
4
, R
5
, R
6
and R
8
, independently form each other represent H, a C
1
-C
6
alkyl, or C
1
-C
6
alkoxy; and R
7
is H, a C
1
-C
6
alkyl, a C
1
-C
6
alkoxy or a C
1
-C
6
fluorinated alkoxy, in order to obtain the sulfinyl derivative (II).
1
                            本发明涉及一种使用
水合过氧化
钠和
钼盐催化剂对
硫醚基氧化为亚砜基的方法。该方法适用于氧化化合物(I)的
硫醚基,其中R1是C1-C6烷基、卤代C1-C6烷基或—(
CH2)n—OR9,其中n为1至6的整数,R9为H或C1-C6烷基;R2、R3、R4、R5、R6和R8独立地表示H、C1-C6烷基或C1-C6烷氧基;R7为H、C1-C6烷基、C1-C6烷氧基或C1-C6
氟代烷氧基,以获得亚砜衍
生物(II)。