申请人:JUNG Joerg
公开号:US20080039633A1
公开(公告)日:2008-02-14
The invention relates to a process for preparing arylamines or heteroarylamines or arylamides or heteroarylamides by cross-coupling of primary or secondary amines or amides with substituted aryl or heteroaryl compounds in the presence of a Brønsted base and a catalyst or precatalyst, wherein the catalyst comprises
a) a transition metal, a complex, a salt or a compound of this transition metal selected from the group consisting of Ni, Pd and
b) at least one ligand selected from the group consisting of bidentate bis(phosphino)alkanediyls having the following formula in a solvent or solvent mixture,
where the radicals Ar
1-4
are each, independently of one another, an aryl or heteroaryl substituent selected from the group consisting of phenyl, naphthyl, pyridyl and biphenyl or Ar
1-4
is hydrogen, C
1
-, C
2
-alkyl, straight-chain, branched or cyclic C
3
-C
8
-alkyl, and
L is an alkanediyl bridge which has from 1 to 20 carbon atoms.
该发明涉及一种在Brønsted碱和催化剂或前催化剂存在下,通过一次或二次胺或酰胺与取代芳基或杂芳基化合物的交叉偶联制备芳基胺或杂芳基胺或芳酰胺或杂芳酰胺的方法,其中催化剂包括
a) 过渡金属,该过渡金属的配合物、盐或化合物,所述过渡金属选自Ni、Pd组成的群体,以及
b) 至少一种来自双齿膦烷二基的配体,其具有以下公式,在溶剂或溶剂混合物中,
其中基团Ar
1-4
分别独立地选自苯基、萘基、吡啶基和联苯基等芳基或杂芳基取代基,或Ar
1-4
为氢、C
1
-、C
2
-烷基、直链、支链或环状C
3
-C
8
-烷基,以及
L是具有1至20个碳原子的烷二基桥。