METHOD FOR PRODUCING ALCOHOL BY HYDROGENATING LACTONE AND CARBOXYLIC ACID ESTER IN LIQUID PHASE
申请人:Maeda Hirofumi
公开号:US20100113842A1
公开(公告)日:2010-05-06
Disclosed is a method for producing an alcohol from a lactone or a carboxylic acid ester, which enables to produce an alcohol from a lactone or a carboxylic acid ester under relatively mild conditions with high yield and high catalytic efficiency. This method also enables to produce an optically active alcohol from an optically active lactone or an optically active carboxylic acid ester. Specifically disclosed is a method for producing an alcohol by hydrogen reducing a lactone or a carboxylic acid ester in the presence of a catalyst containing ruthenium and a phosphine compound represented by the following general formula (1):
wherein R
1
represents a spacer; R
2
, R
3
, R
4
, R
5
, R
6
and R
7
independently represent a hydrogen atom, an alkyl group having 1-12 carbon atoms, an aryl group or a heterocyclic group; and R
8
, R
9
, R
10
, R
11
, R
12
and R
13
independently represent an alkyl group having 1-12 carbon atoms, an aryl group or a heterocyclic group.
本发明公开了一种从内酯或羧酸酯中制备醇的方法,该方法可以在相对温和的条件下高收率、高催化效率地从内酯或羧酸酯中制备醇。该方法还可以从手性内酯或手性羧酸酯中制备手性醇。具体公开了一种通过在催化剂中加入钌和以下通式(1)所代表的膦化合物的存在下,氢化还原内酯或羧酸酯制备醇的方法:其中R1代表间隔物,R2、R3、R4、R5、R6和R7分别独立地代表氢原子、具有1-12个碳原子的烷基、芳基或杂环基,R8、R9、R10、R11、R12和R13分别独立地代表具有1-12个碳原子的烷基、芳基或杂环基。