PROCESS FOR PREPARING SYMMETRIC PINCER LIGANDS FROM THE GROUP OF THE M-TERPHENYL COMPOUNDS
申请人:EVONIK DEGUSSA GMBH
公开号:US20170050918A1
公开(公告)日:2017-02-23
The present invention relates to a process for preparing compounds of the formula ABA
by reacting a compound of the formula (A)
with a compound of the formula (B)
with X═—OR′ or —NHR′ and R′═H or a protecting group function and R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
and R
8
are each independently selected from the group comprising hydrogen, (C
1
-C
12
)-alkyl, O—(C
1
-C
12
)-alkyl, (C
6
-C
20
)-aryl, O—(C
6
-C
20
)-aryl, where two of the R
1
to R
4
radicals may also be joined via a covalent bond, and halogen, which is characterized in that the reaction is conducted electrochemically.
本发明涉及一种通过以电化学方式进行反应来制备公式ABA化合物的方法。其中,通过将公式(A)的化合物与公式(B)的化合物进行反应,其中X═—OR′或—NHR′,R′═H或保护基团功能,R1、R2、R3、R4、R5、R6、R7和R8分别独立地选择自氢、(C1-C12)-烷基、O—(C1-C12)-烷基、(C6-C20)-芳基、O—(C6-C20)-芳基、其中R1到R4中的两个基团也可以通过共价键连接,以及卤素。