申请人:Takasago International Corporation
公开号:US20210047254A1
公开(公告)日:2021-02-18
The present invention relates to: a method for converting a hydroxyl group of an alcohol; and a catalyst which makes the method possible. A method for converting a hydroxyl group of an alcohol according to the present invention is characterized by producing a compound represented by CH(R
1
)(R
2
)Nu (wherein R
1
, R
2
and Nu are as defined below) by reacting an alcohol represented by CH(R
1
)(R
2
)OH (wherein each of R
1
and R
2
represents a hydrogen atom, an optionally substituted alkyl group, or the like) and a compound having an active proton, which is represented by H-Nu (wherein Nu represents a group represented by —CHX
1
-EWG
1
or —NR
3
R
4
; X
1
represents a hydrogen atom or the like; EWG
1
represents an electron-withdrawing group; and each of R
3
and R
4
represents a hydrogen atom, an optionally substituted alkyl group, or the like), with each other in the presence of a complex of a group 7-11 metal of the periodic table and at least one solid base that is selected from the group consisting of layered double hydroxides, composite oxides and calcium hydroxide.
本发明涉及:将醇的羟基转化为的方法;以及使该方法成为可能的催化剂。根据本发明的将醇的羟基转化为的方法的特征在于,在周期表的7-11族金属群的复合物存在下,通过将一个由CH(R1)(R2)OH(其中R1和R2分别表示氢原子、可选择取代的烷基基团或类似物)表示的醇与一个具有活性质子的化合物(其中Nu表示由—CHX1-EWG1或—NR3R4表示的基团;X1表示氢原子或类似物;EWG1表示电子吸引基团;R3和R4分别表示氢原子、可选择取代的烷基基团或类似物)反应,从而产生一个由CH(R1)(R2)Nu(其中R1、R2和Nu如下定义)表示的化合物。同时,所述反应中至少选择一种来自层状双氢氧化物、复合氧化物和氢氧化钙的固体碱作为催化剂。