申请人:BASF Aktiengesellschaft
公开号:US20020133040A1
公开(公告)日:2002-09-19
Carbamate solutions are obtainable by reacting at least one alkanolamine with carbon dioxide in, as solvent, at least one organic compound having a molecular weight of from 60 to 600 and containing at least one hydroxyl group, wherein the carbamate contains at least 0.51 mol of bound carbon dioxide per mole of alkanolamine and the alkanolamine has one of the following formula:
(I): NH
2
−X−OH
(II): HO−X−Y−OH
(III) :HO−X−NR
9
−(CR
7
R
8
)
n5
−Y−OH
where
X: −[(CR
1
R
2
)
n1
−NR
3
]
n2
−[(CR
4
R
5
)
n3
−NR
6
]
n4
−(CR
7
R
8
)
n5
−
Y: −[NR
6
−(CR
4
R
5
)
n3
]
n4
−[NR
3
−(CR
1
R
2
)
n1
]
n2
−
and
n
1
, n
3
, n
5
: identical or different integers selected from the group consisting of 1, 2, 3, 4,
n
2
, n
4
: identical or different integers selected from the group consisting of 0, 1, 2, 3, 4, 5, 6, where for each of X and Y the sum of n
2
and n
4
is greater than or equal to 1,
R
1
, R
2
, R
4
, R
5
, R
7
, R
8
: identical or different radicals selected from the group consisting of hydrogen, aliphatic, cycloaliphatic, araliphatic and aromatic radicals having from 1 to 20 carbon atoms,
R
3
, R
6
, R
9
: identical or different radicals selected from the group consisting of hydrogen, aliphatic, cycloaliphatic, araliphatic and aromatic radicals having from 1 to 20 carbon atoms.
氨基甲酸酯溶液可通过至少一种烷醇胺与二氧化碳在至少一种分子量为 60 至 600 并含有至少一个羟基的有机化合物(作为溶剂)中反应而获得,其中氨基甲酸酯每摩尔烷醇胺至少含有 0.51 摩尔结合的二氧化碳,烷醇胺具有下式之一:
(I):NH
2
-X-OH
(II):HO-X-Y-OH
(III) :HO-X-NR
9
-(CR
7
R
8
)
n5
-Y-OH
其中
X:-[(CR
1
R
2
)
n1
-NR
3
]
n2
-[(CR
4
R
5
)
n3
-NR
6
]
n4
-(CR
7
R
8
)
n5
-
Y:-[NR
6
-(CR
4
R
5
)
n3
]
n4
-[NR
3
-(CR
1
R
2
)
n1
]
n2
-
和
n
1
, n
3
, n
5
:从 1、2、3、4 所组成的组中选出的相同或不同的整数、
n
2
, n
4
:从 0、1、2、3、4、5、6 所组成的组中选出的相同或不同的整数,其中 X 和 Y 的总和为 n
2
和 n
4
大于或等于 1、
R
1
, R
2
, R
4
, R
5
, R
7
, R
8
:相同或不同的基团,选自氢、脂肪族、环脂族、芳脂族和芳香族基团,这些基团具有 1 至 20 个碳原子、
R
3
, R
6
, R
9
:相同或不同的基团,选自氢、脂肪族、环脂族、芳脂族和芳香族基团,这些基团具有 1 至 20 个碳原子。