2,2 (Diarlyl) Vinylphosphine compound,
palladium catalyst thereof, and process for
producing arylamine, diaryl, or arylalkyne with
the catalyst
申请人:——
公开号:US20020058837A1
公开(公告)日:2002-05-16
A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1):
1
(wherein R
1
is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R
2
, R
3
, R
4
, R
5
, R
6
, and R
7
may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R
4
and R
5
taken together and/or R
6
and R
7
taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.
一种由以下通用公式(1)表示的新型2,2-(二芳基)乙烯膦化合物:其中R1是氢原子、具有1至6个碳原子的烷基基团、具有5至7个碳原子的脂环基团等;R2、R3、R4、R5、R6和R7可能相同或不同,每个是具有1至6个碳原子的烷基基团、具有5至7个碳原子的脂环基团等,但要求R4和R5一起和/或R6和R7一起可能代表融合苯环、取代融合苯环、三亚甲基基团等;p、q、r和s每个为0至5,但要求p+q和r+s分别在0至5的范围内;通过使钯化合物作用于新型2,2-(二芳基)乙烯膦化合物而获得的钯-膦催化剂;以及在钯-膦催化剂存在下获得芳胺、二芳基和芳基炔的方法。