Optically active bisoxazoline compounds, process for production of the same and use thereof
申请人:Itagaki Makoto
公开号:US20060149077A1
公开(公告)日:2006-07-06
Optically active bisoxazoline compounds represented by the general formula (1), a process for producing the compounds, and a process for producing cyclopropanecarboxylic esters by using the same:
wherein R
1
and R
2
are the same and each represents C
1-6
alkyl, substituted or unsubstituted aralkyl, or substituted or unsubstituted phenyl or R
1
and R
2
are bonded each other together with the carbon atom of oxazoline ring to which they are bonded to form a ring; R
3
is substituted or unsubstituted naphthyl; R
4
and R
5
are the same and each represent hydrogen or C
1-6
alkyl, or R
4
and R
5
are bonded each other together with the carbon atom to which they are bonded to form a cycloalkyl ring having 3 to 6 carbon atoms; and * represents an asymmetric center.
光学活性的双噁唑啉化合物由通式(1)表示,制备该化合物的方法以及使用该化合物制备环丙烷羧酸酯的方法:
其中,R1和R2相同,分别表示C1-6烷基,取代或未取代的芳基烷基或取代或未取代的苯基,或者R1和R2相互结合形成环,与它们所连接的噁唑环的碳原子相连;R3是取代或未取代的萘基;R4和R5相同,分别表示氢或C1-6烷基,或者R4和R5相互结合形成有3至6个碳原子的环状烷基环;*表示一个不对称中心。