申请人:Ootsuka Yoshikazu
公开号:US20090182153A1
公开(公告)日:2009-07-16
To provide a novel process for producing an optically active allyl compound which is useful as an intermediate raw material for e.g. pharmaceutical products.
A process for producing an optically active allyl compound of the formula (4):
(wherein “*” represents an asymmetric carbon atom), which comprises reacting an allyloxy compound of the formula (1):
(wherein R
1
is a C
1-6
alkyl group or a C
1-6
alkoxyl group, and each of R
2
, R
3
, R
4
, R
5
and R
6
independently is a C
1-6
alkyl group which may be linear, branched or cyclic, a hydrogen atom or a C
6-12
aromatic group, provided that R
2
and R
6
may be located in the same ring) with a hydrogenated compound of the formula (3):
(wherein X is a carbon atom, an oxygen atom, a sulfur atom or a nitrogen atom, and each of R
8
, R
9
and R
10
independently is a C
1-24
alkyl group which may be linear, branched or cyclic, a C
1-24
alkylcarbonyl group which may be branched or cyclic, a C
1-24
alkoxycarbonyl group which may be branched or cyclic, a hydrogen atom, a halogen atom or a C
6-10
aromatic group, or two of R
8
, R
9
and R
10
may together form a ring containing one or two carbonyl groups), in the presence of a palladium compound and an optically active phosphine ligand of the formula (2):
(wherein each of Ar
1
, Ar
2
, Ar
3
and Ar
4
independently is a C
6-10
aromatic group, and R
7
is a structure having at least one asymmetric center or axial chirality), wherein a tertiary amine of the formula (5):
(wherein each of R
11
, R
12
and R
13
independently is a C
2-12
aliphatic group or a C
2-12
substituted aliphatic group, which may be linear, branched or cyclic, or a C
6-10
aromatic group or a C
6-10
substituted aromatic group) is present in the above reaction system.
提供一种用于生产光学活性丙烯基化合物的新颖工艺,该化合物可用作制药产品的中间原料。生产光学活性丙烯基化合物的工艺如下:将式(1)的丙烯氧基化合物(其中R1是C1-6烷基或C1-6烷氧基,R2、R3、R4、R5和R6分别是C1-6烷基,可以是直链、支链或环状,氢原子或C6-12芳香基,但R2和R6可以位于同一环中)与式(3)的氢化合物反应(其中X是碳原子、氧原子、硫原子或氮原子,R8、R9和R10分别是C1-24烷基,可以是直链、支链或环状,C1-24烷基羰基,可以是支链或环状,C1-24烷氧羰基,可以是支链或环状,氢原子,卤原子或C6-10芳香基,或R8、R9和R10中的两个可以一起形成含有一个或两个羰基的环),在钯化合物和式(2)的光学活性膦配体的存在下进行,其中式(2)中的Ar1、Ar2、Ar3和Ar4分别是C6-10芳香基,R7是至少具有一个不对称中心或轴手性的结构,反应体系中还存在式(5)的三级胺(其中R11、R12和R13分别是C2-12脂肪基或C2-12取代脂肪基,可以是直链、支链或环状,或C6-10芳香基或C6-10取代芳香基)。