申请人:——
公开号:US20020091194A1
公开(公告)日:2002-07-11
Mixtures of primary amines of the formula (I)
X—CH
2
—NH
2
(I)
and secondary amines of the formula (II)
(X—CH
2
—)
2
NH (II)
where
X is C
1-20
-alkyl, C
2-20
-alkenyl or C
3-8
-cycloalkyl which may be unsubstituted or substituted by C
1-20
-alkyl, C
3-8
-cycloalkyl, C
4-20
-alkylcycloalkyl, C
4-20
-cycloalkylalkyl, C
2-20
-alkoxyalkyl, C
6-14
-aryl, C
7-20
-alkylaryl, C
7-20
-aralkyl, C
1-20
-alkoxy, hydroxy, C
1-20
-hydroxyalkyl, amino, C
1-20
-alkylamino, C
2-20
-diallcylamino, C
2-12
-alkenylamino. C
3-8
-cycloalkylamino, arylamino, diarylamino, aryl-C
1-8
-alkylamino, halogen, mercapto, C
2-20
-alkenyloxy, C
3-8
-cycloalkoxy, aryloxy and/or C
2-8
-alkoxycarbonyl
are prepared by reacting nitriles of the formula (III)
X—CN (III)
with hydrogen at from 50 to 250° C. and pressures of from 5 to 350 bar in the presence of a Pd-containing catalyst comprising, based on the total weight of the catalyst, from 0.1 to 10% by Weight of Pd on a support.
式 (I) 的
伯胺混合物
X-CH
2
-NH
2
(I)
和式 (II) 的仲胺
(X-CH
2
-)
2
NH (II)
其中
X 为 C
1-20
-烷基、C
2-20
-烯基或 C
3-8
-环烷基,可为未取代或被 C
1-20
-烷基、C
3-8
-环烷基、C
4-20
-环烷基,C
4-20
-环烷基烷基,C
2-20
-烷氧基烷基,C
6-14
-芳基、C
7-20
-烷基芳基,C
7-20
-芳烷基,C
1-20
-烷氧基、羟基、C
1-20
-羟基烷基、
氨基、C
1-20
-烷基
氨基、C
2-20
-二烷基
氨基,C
2-12
-烯
氨基C
3-8
-环烷基
氨基、芳基
氨基、二芳基
氨基、芳基-C
1-8
-烷基
氨基、卤素、巯基、C
2-20
-烯氧基、C
3-8
-环烷氧基、芳氧基和/或 C
2-8
-烷氧基羰基
通过式 (III) 的腈反应制备
X-CN (III)
与
氢气在 50 至 250 摄氏度和 5 至 350 巴的压力下,在含
钯催化剂存在下进行。