申请人:EVONIK DEGUSSA GMBH
公开号:US20170022137A1
公开(公告)日:2017-01-26
The invention relates to compounds of formula (I)
where
m and n are each independently 0 or 1;
R
1
, R
2
, R
3
, R
4
are each independently selected from —(C
1
-C
12
)-alkyl, —(C
3
-C
12
)-cycloalkyl, —(C
3
-C
12
)-heterocycloalkyl, —(C
6
-C
20
)-aryl, —(C
3
-C
20
)-heteroaryl;
at least one of the R
1
, R
2
, R
3
, R
4
radicals is a —(C
3
-C
20
)-heteroaryl radical;
and
R
1
, R
2
, R
3
, R
4
, if they are —(C
1
-C
12
)-alkyl, —(C
3
-C
12
)-cycloalkyl, —(C
3
-C
12
)-heterocycloalkyl, —(C
6
-C
20
)-aryl or —(C
3
-C
20
)-heteroaryl,
may each independently be substituted by one or more substituents selected from —(C
1
-C
12
)-alkyl, —(C
3
-C
12
)-cycloalkyl, —(C
3
-C
12
)-heterocycloalkyl, —O—(C
1
-C
12
)-alkyl, —O—(C
1
-C
12
)-alkyl-(C
6
-C
20
)-aryl, —O—(C
3
-C
12
)-cycloalkyl, —S—(C
1
-C
12
)-alkyl, —S—(C
3
-C
12
)-cycloalkyl, —COO—(C
1
-C
12
)-alkyl, —COO—(C
3
-C
12
)-cycloalkyl, —CONH—(C
1
-C
12
)-alkyl, —CONH—(C
3
-C
12
)-cycloalkyl, —CO—(C
1
-C
12
)-alkyl, —CO—(C
3
-C
12
)-cycloalkyl, —N—[(C
1
-C
12
)-alkyl]
2
, —(C
6
-C
20
)-aryl, —(C
6
-C
20
)-aryl-(C
1
-C
12
)-alkyl, —(C
6
-C
20
)-aryl-O—(C
1
-C
12
)-alkyl, —(C
3
-C
20
)-heteroaryl, —(C
3
-C
20
)-heteroaryl-(C
1
-C
12
)-alkyl, —(C
3
-C
20
)-heteroaryl-O—(C
1
-C
12
)-alkyl, —COOH, —OH, —SO
3
H, —NH
2
, halogen;
and to the use thereof as ligands in alkoxycarbonylation.