申请人:Hagiya Koji
公开号:US20080114185A1
公开(公告)日:2008-05-15
A method for producing an unsaturated vicinal diol compound represented by the formula (2):
wherein R
1
, R
2
, R
3
, R
4
, R
5
and R are the same or different and each independently represent a hydrogen atom; a C1-C20 alkyl group which may be substituted with a halogen atom or atoms, a C1-C6 alkoxy group or groups, a C2-C7 alkoxycabonyl group or groups, a C6-C10 aryl group or groups, or a carboxyl group or groups; or a C6-C10 aryl group which may be substituted with a halogen atom or atoms, a C1-C6 alkoxy group or groups, a C6-C10 aryl group or groups, or a carboxyl group or groups; which comprises reacting an unsaturated epoxy compound represented by the formula (1):
wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are the same as defined above, with water in the presence of a silicate containing at least one element selected from a group 5 element and a group 6 element of the long periodic table as a constituent.