申请人:North Michael
公开号:US20110015409A1
公开(公告)日:2011-01-20
A dimeric aluminium(salen) catalyst of formula I:
wherein: Y-Q is CR
C1
═N or CR
C1
R
C2
—NR
N1
, where R
C1
, R
C2
and R
N1
are independently selected from H, halo, optionally substituted C
1-20
alkyl, optionally substituted C
5-20
aryl, ether and nitro; each of the substituents R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
, R
13
, R
14
, R
15
, and R
16
, is independently selected from H, halo, optionally substituted C
1-20
alkyl, optionally substituted C
5-20
aryl, optionally substituted C
3-20
heterocyclyl, ether and nitro; X
1
and X
2
are independently either (i) a C
2-5
alkylene chain, which is optionally substituted by one or more groups selected from C
1-4
alkyl and C
5-7
aryl, or a C
1-3
bisoxyalkylene chain, which is optionally substituted by one or more groups selected from C
1-4
alkyl and C
5-7
aryl or (ii) represent a divalent group selected from C
5-7
arylene, C
5-7
cyclic alkylene and C
3-7
heterocyclylene, which may be optionally substituted; (i) (a) at least one of R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
, R
13
, R
14
, R
15
, and R
16
is selected from L-A, where L is a single bond or a C
1-10
alkylene group and A is an ammonium group paired with a counterion selected from Cl, Br and I; and/or (b) at least one of X
1
and X
2
is a divalent C
3-7
heterocyclene group, containing a ring atom which is a quaternary nitrogen atom paired with a counterion selected from Cl, Br and I; and/or (c) at least one of X
1
and X
2
is a C
2-5
alkylene chain or a C
1-3
bisoxyalkylene chain, substituted by a group -Q-L-A, where Q is either —C(═O)—O—, —C(═O)—NH—, or a single bond; and/or (ii) (a) one of R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
, R
13
, R
14
, R
15
, and R
16
is L-A′, where L is as defined above and A′ is a ammonium linking group bound to a solid support and paired with a counterion selected from Cl, Br and I; or (b) one of X
1
and X
2
is a divalent C
3-7
heterocyclene group, containing a ring atom which is a quaternary nitrogen forming part of an ammonium linking group bound to a solid support and paired with a counterion selected from Cl, Br and I; or (c) one of X
1
and X
2
is a C
2-5
alkylene chain or a C
1-3
bisoxyalkylene chain, substituted by a group -Q-L-A′.
化学式I的二聚铝(salen)催化剂:其中:Y-Q为CRC1═N或CRC1RC2—NRN1,其中RC1、RC2和RN1独立选择自H、卤素、可选取代的C1-20烷基、可选取代的C5-20芳基、醚和硝基;每个取代基R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15和R16独立选择自H、卤素、可选取代的C1-20烷基、可选取代的C5-20芳基、可选取代的C3-20杂环基、醚和硝基;X1和X2独立选择自(i) C2-5烷基链,可选取自C1-4烷基和C5-7芳基中的一个或多个基团,或C1-3双氧杂烷基链,可选取自C1-4烷基和C5-7芳基中的一个或多个基团;或(ii)代表选自C5-7芳基、C5-7环烷基和C3-7杂环烷基的二价基团,可选取代;(i)(a) R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15和R16中至少一个选择自L-A,其中L为单键或C1-10烷基,A为与Cl、Br和I中选择的一个对离子配对的铵基;和/或(b) X1和X2中至少一个为含有一个季铵对离子选择自Cl、Br和I的四价氮原子的C3-7杂环烷基;和/或(c) X1和X2中至少一个为被-Q-L-A取代的C2-5烷基链或C1-3双氧杂烷基链,其中Q为—C(═O)—O—、—C(═O)—NH—或单键;和/或(ii)(a) R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15和R16中的一个为L-A′,其中L如上定义,A′为与Cl、Br和I中选择的一个对离子配对的铵连接基;或(b) X1和X2中的一个为含有一个季铵对离子选择自Cl、Br和I的四价氮原子的C3-7杂环烷基,形成与固体支持物相连的铵连接基;或(c) X1和X2中的一个为被-Q-L-A′取代的C2-5烷基链或C1-3双氧杂烷基链。