PROCESS FOR THE ALKOXYCARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS WITH MONOPHOSPHINE LIGANDS
申请人:EVONIK DEGUSSA GMBH
公开号:US20180022764A1
公开(公告)日:2018-01-25
The invention relates to a process comprising the following process steps:
a) introducing an ethylenically unsaturated compound;
b) adding a monophosphine ligand and a compound which comprises Pd, or adding a complex comprising Pd and a monophosphine ligand;
c) adding an aliphatic alcohol;
d) supplying CO;
e) heating the reaction mixture, the ethylenically unsaturated compound being reacted to form an ester;
where the monophosphine ligand is a compound of formula (I)
where
R
1
is selected from —(C
1
-C
12
)-alkyl, —O—(C
1
-C
12
)-alkyl, —O—(C
6
-C
20
)-aryl, —(C
6
-C
20
)-aryl, —(C
3
-C
12
)-cycloalkyl, —(C
3
-C
12
)-heterocycloalkyl, —(C
3
-C
20
)-heteroaryl;
R
2
is selected from —(C
6
-C
20
)-aryl, —(C
3
-C
12
)-cycloalkyl, —(C
3
-C
12
)-heterocycloalkyl, —(C
3
-C
20
)-heteroaryl;
R
3
is —(C
3
-C
20
)-heteroaryl;
and R
1
, R
2
and R
3
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.
该发明涉及一种包括以下步骤的过程:a)引入一个乙烯基不饱和化合物;b)添加一种膦配体和一个包含Pd的化合物,或者添加一个包含Pd和一种膦配体的复合物;c)添加一种脂肪醇;d)供应CO;e)加热反应混合物,使乙烯基不饱和化合物发生酯化反应;其中膦配体是化合物(I)的一种,其中R1选择自—(C1-C12)-烷基,—O—(C1-C12)-烷基,—O—(C6-C20)-芳基,—(C6-C20)-芳基,—(C3-C12)-环烷基,—(C3-C12)-杂环烷基,—(C3-C20)-杂芳基;R2选择自—(C6-C20)-芳基,—(C3-C12)-环烷基,—(C3-C12)-杂环烷基,—(C3-C20)-杂芳基;R3为—(C3-C20)-杂芳基;R1、R2和R3可以分别被一个或多个取代基所取代,所述取代基选择自—(C1-C12)-烷基,—(C3-C12)-环烷基,—(C3-C12)-杂环烷基,—O—(C1-C12)-烷基,—O—(C1-C12)-烷基-(C6-C20)-芳基,—O—(C3-C12)-环烷基,—S—(C1-C12)-烷基,—S—(C3-C12)-环烷基,—COO—(C1-C12)-烷基,—COO—(C3-C12)-环烷基,—CONH—(C1-C12)-烷基,—CONH—(C3-C12)-环烷基,—CO—(C1-C12)-烷基,—CO—(C3-C12)-环烷基,—N—[(C1-C12)-烷基]2,—(C6-C20)-芳基,—(C6-C20)-芳基-(C1-C12)-烷基,—(C6-C20)-芳基-O—(C1-C12)-烷基,—(C3-C20)-杂芳基,—(C3-C20)-杂芳基-(C1-C12)-烷基,—(C3-C20)-杂芳基-O—(C1-C12)-烷基,—COOH,—OH,—SO3H,—NH2,卤素。