CN109942399B - 将二异丁烯直接转化为羧酸的方法 - Google Patents

将二异丁烯直接转化为羧酸的方法 Download PDF

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CN109942399B
CN109942399B CN201811562166.7A CN201811562166A CN109942399B CN 109942399 B CN109942399 B CN 109942399B CN 201811562166 A CN201811562166 A CN 201811562166A CN 109942399 B CN109942399 B CN 109942399B
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diisobutylene
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桑睿
P.库米尔齐克
董开武
R.雅克斯特尔
M.贝勒
R.弗兰克
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Abstract

本发明涉及将二异丁烯直接转化为羧酸的方法。

Description

将二异丁烯直接转化为羧酸的方法
技术领域
本发明涉及将二异丁烯直接转化为羧酸的方法。
背景技术
羧酸用于制备聚合物、药物、溶剂和食品添加剂。产生羧酸的路线通常包括烃、醇或醛的氧化、通过臭氧分解的烯烃的氧化裂解、甘油三酯、腈、酯或酰胺的水解、格氏或有机锂试剂的羧化,以及在卤仿反应中甲基酮的卤化和随后水解。
发明内容
本发明的目的是提供用于可以将二异丁烯(DIBN)直接转化为羧酸的方法。
在本申请的上下文中,“直接转化”旨在表示反应在一个步骤中进行,即没有中间产物的分离或后处理等。
这不排除在反应过程中暂时形成直接进一步转化的中间体。
该目的通过根据权利要求1的方法实现。
包括下列方法步骤的方法:
a) 添加二异丁烯;
b) 添加包含通式(I)的化合物的络合物以及Pd,
或根据通式(I)的化合物和含Pd的物质
Figure 100002_DEST_PATH_IMAGE001
其中
R1、R2、R3、R4各自彼此独立地选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基、-(C3-C20)-杂芳基;
R1、R2、R3、R4基团的至少之一是具有至少六个环原子的-(C6-C20)-杂芳基;
如果R1、R2、R3、R4是-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基、-(C3-C20)-杂芳基或-(C6-C20)-杂芳基,
它们各自彼此独立地可以被一个或多个选自如下的取代基取代:
-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-O-(C1-C12)-烷基、-O-(C1-C12)-烷基-(C6-C20)-芳基、-O-(C3-C12)-环烷基、-S-(C1-C12)-烷基、-S-(C3-C12)-环烷基、-COO-(C1-C12)-烷基、-COO-(C3-C12)-环烷基、-CONH-(C1-C12)-烷基、-CONH-(C3-C12)-环烷基、-CO-(C1-C12)-烷基、-CO-(C3-C12)-环烷基、-N-[(C1-C12)-烷基]2、-(C6-C20)-芳基、-(C6-C20)-芳基-(C1-C12)-烷基、-(C6-C20)-芳基-O-(C1-C12)-烷基、-(C3-C20)-杂芳基、-(C3-C20)-杂芳基-(C1-C12)-烷基、-(C3-C20)-杂芳基-O-(C1-C12)-烷基、-COOH、-OH、-SO3H、-NH2、卤素;
c) 进料CO;
d) 将反应混合物加热以使得二异丁烯转化为羧酸,
其中二异丁烯直接转化为羧酸。
在所述方法的一个变体中,R1、R2、R3、R4基团的至少两个是具有至少六个环原子的-(C6-C20)-杂芳基。
在所述方法的一个变体中,R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基。
在所述方法的一个变体中,R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
R2是具有至少六个环原子的-(C6-C20)-杂芳基或选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基;
且R4选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基。
在所述方法的一个变体中,R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
且R2和R4选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基。
在所述方法的一个变体中,R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
且R2和R4是-(C1-C12)-烷基。
在所述方法的一个变体中,如果R1、R2、R3、R4是杂芳基,它们各自彼此独立地选自吡啶基、哒嗪基、嘧啶基、吡嗪基、苯并呋喃基、吲哚基、异吲哚基、苯并咪唑基、喹啉基、异喹啉基。
在所述方法的一个变体中,化合物(I)具有结构(1):
Figure 295005DEST_PATH_IMAGE002
在所述方法的一个变体中,方法步骤b)中的物质选自:
PdCl2、PdBr2、Pd(acac)2、Pd(dba)2 (dba = 二亚苄叉丙酮)、PdCl2(CH3CN)2
在所述方法的一个变体中,方法步骤b)中的物质是Pd(acac)2
在所述方法的一个变体中,所述方法包括额外的方法步骤e):
e) 添加乙酸。
在所述方法的一个变体中,所述方法包括额外的方法步骤f):
f) 添加水。
在所述方法的一个变体中,所述方法包括额外的方法步骤g):
g) 添加对甲苯磺酸(PTSA)。
在所述方法的一个变体中,在方法步骤d)中将反应混合物加热到80°C至160°C的温度。
在所述方法的一个优选变体中,在方法步骤d)中将反应混合物加热到100°C至140°C的温度。
在所述方法的一个变体中,在方法步骤c)中进料CO,以使得所述反应在20 bar至60 bar的CO压力下进行。
在所述方法的一个优选变体中,在方法步骤c)中进料CO,以使得所述反应在30bar至50 bar的CO压力下进行。
在所述方法的一个变体中,二异丁烯转化为化合物P1:
Figure 100002_DEST_PATH_IMAGE003
(P1)。
具体实施方式
下面通过实施例更详细地阐述本发明。
Figure 386327DEST_PATH_IMAGE004
向4ml小瓶中装入[Pd(acac)2](3.05mg,0.25mol%)、配体(X)(20.64mg,1.0mol%)、对甲苯磺酸(28.5mg,3.75mol%)和经烘箱干燥的搅拌棒。然后用隔膜(经PTFE涂覆的苯乙烯-丁二烯橡胶)和酚树脂盖密封小瓶。将小瓶抽真空并用氩气再填充三次。用注射器将H2O(0.5ml)、乙酸(1.5ml)和二异丁烯(DIBN)(4.0mmol)加入到小瓶中。将小瓶置于合金板中,该合金板转移至氩气气氛下的来自Parr Instruments的4560系列的高压釜(300ml)中。在用CO吹扫高压釜三次后,将CO压力增加到室温下40bar。反应在120℃下进行20小时。在反应结束后,将高压釜冷却到室温并小心地减压。然后加入异辛烷(100µl)作为内标。通过GC分析测量转化率。
进行上述实验,其中改变配体(X),X = 1至8。
结果汇编在下表中。
配体 收率(%)
(1)* > 99
(2) 7
(3) 39
(4) 26
(5) 16
(6) 8
(7) 13
(8) 29
* 本发明的方法。
如实验结果所示,所述目的通过本发明的方法实现。

Claims (15)

1.将二异丁烯直接转化为羧酸的方法,其包括下列方法步骤:
a) 添加二异丁烯;
b) 添加包含通式(I)的化合物的络合物以及Pd,
或根据通式(I)的化合物和含Pd的物质
Figure DEST_PATH_IMAGE001
其中
R1、R2、R3、R4各自彼此独立地选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基、-(C3-C20)-杂芳基;
R1、R2、R3、R4基团的至少之一是具有至少六个环原子的-(C6-C20)-杂芳基,
如果R1、R2、R3、R4是-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基或-(C3-C20)-杂芳基,
它们各自彼此独立地可以被一个或多个选自如下的取代基取代:
-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-O-(C1-C12)-烷基、-O-(C1-C12)-烷基-(C6-C20)-芳基、-O-(C3-C12)-环烷基、-S-(C1-C12)-烷基、-S-(C3-C12)-环烷基、-COO-(C1-C12)-烷基、-COO-(C3-C12)-环烷基、-CONH-(C1-C12)-烷基、-CONH-(C3-C12)-环烷基、-CO-(C1-C12)-烷基、-CO-(C3-C12)-环烷基、-N-[(C1-C12)-烷基]2、-(C6-C20)-芳基、-(C6-C20)-芳基-(C1-C12)-烷基、-(C6-C20)-芳基-O-(C1-C12)-烷基、-(C3-C20)-杂芳基、-(C3-C20)-杂芳基-(C1-C12)-烷基、-(C3-C20)-杂芳基-O-(C1-C12)-烷基、-COOH、-OH、-SO3H、-NH2、卤素;
c) 进料CO;
d) 将反应混合物加热以使得二异丁烯转化为羧酸,
其中二异丁烯直接转化为羧酸。
2.根据权利要求1的方法,
其中 R1、R2、R3、R4基团的至少两个是具有至少六个环原子的-(C6-C20)-杂芳基。
3.根据权利要求1或2任一项的方法,
其中R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基。
4.根据权利要求1至2任一项的方法,
其中R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
R2是具有至少六个环原子的-(C6-C20)-杂芳基或选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基;
且R4选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基。
5.根据权利要求1至2任一项的方法,
其中R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
且R2和R4选自-(C1-C12)-烷基、-(C3-C12)-环烷基、-(C3-C12)-杂环烷基、-(C6-C20)-芳基。
6.根据权利要求1至2任一项的方法,
其中R1和R3基团各自是具有至少六个环原子的-(C6-C20)-杂芳基;
且R2和R4是-(C1-C12)-烷基。
7.根据权利要求1至2任一项的方法,
其中如果R1、R2、R3、R4是杂芳基,它们各自彼此独立地选自吡啶基、哒嗪基、嘧啶基、吡嗪基、苯并呋喃基、吲哚基、异吲哚基、苯并咪唑基、喹啉基、异喹啉基。
8.根据权利要求1至2任一项的方法,
其中化合物(I)具有结构(1):
Figure DEST_PATH_IMAGE002
9.根据权利要求1至2任一项的方法,
其中方法步骤b)中的物质选自:
PdCl2、PdBr2、Pd(acac)2、Pd(dba)2、PdCl2(CH3CN)2,其中dba表示二亚苄叉丙酮。
10.根据权利要求1至2任一项的方法,
其中所述方法包括额外的方法步骤e):
e) 添加乙酸。
11.根据权利要求1至2任一项的方法,
其中所述方法包括额外的方法步骤f):
f) 添加水。
12.根据权利要求1至2任一项的方法,
其中所述方法包括额外的方法步骤g):
g) 添加对甲苯磺酸。
13.根据权利要求1至2任一项的方法,
其中将反应混合物在方法步骤d)中加热到80°C至160°C的温度。
14.根据权利要求1至2任一项的方法,
其中在方法步骤c)中进料CO以使得所述反应在20 bar至60 bar的CO压力下进行。
15.根据权利要求1至2任一项的方法,
其中二异丁烯转化为化合物P1:
Figure DEST_PATH_IMAGE003
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MX2018015526A (es) 2019-06-24
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