申请人:Michalak Ronald Stanley
公开号:US20090216046A1
公开(公告)日:2009-08-27
This invention is directed to a method of selectively acylating a compound of formula (II): (II), wherein: R
1
is NO
2
, —N
+
R
3
3
, trihalomethyl, —CN, —SO
3
H, —CO
2
H, —CO
2
R
3
, —CHO and —COR
3
, wherein R
3
is C
1
-C
6
alkyl, C
1
-C
6
haloalkyl, C
3
-C
12
cycloalkyl, C
6
-C
12
aryl, C
2
-C
9
heteroaryl, or C
1
-C
9
heterocycloalkyl; comprising the step of reacting the compound of formula (II) with an acylating reagent to form a compound of formula (I): (I), wherein R
2
is selected from C
1
-C
12
alkyl, C
1
-C
12
haloalkyl, C
2
-C
7
alkenyl, C
2
-C
7
alkynyl, C
3
-C
12
cycloalkyl, C
6
-C
12
aryl, C
1
-C
9
heterocycloalkyl, C
2
-C
9
heteroaryl, C
1
-C
12
alkoxy, C
1
-C
12
haloalkoxy, C
3
-C
12
cycloalkoxy, C
1
-C
9
heterocycloalkoxy, C
6
-C
12
aryloxy, and C
2
-C
9
heteroaryloxy; or salts thereof.
这项发明涉及一种选择性酰基化化合物的方法,该化合物的结构式为(II): (II),其中:R1为NO2,—N+R33,三卤甲基,—CN,—SO3H,—CO2H,—CO2R3,—CHO和—COR3,其中R3为C1-C6烷基,C1-C6卤代烷基,C3-C12环烷基,C6-C12芳基,C2-C9杂芳基或C1-C9杂环烷基;包括将结构式(II)的化合物与酰基试剂反应形成结构式(I)的化合物的步骤:(I),其中R2选自C1-C12烷基,C1-C12卤代烷基,C2-C7烯烃基,C2-C7炔烃基,C3-C12环烷基,C6-C12芳基,C1-C9杂环烷基,C2-C9杂芳基,C1-C12烷氧基,C1-C12卤代烷氧基,C3-C12环烷氧基,C1-C9杂环烷氧基,C6-C12芳氧基和C2-C9杂芳氧基;或其盐。