申请人:Showa Shell Sekiyu Kabushiki Kaisha
公开号:EP0423992A1
公开(公告)日:1991-04-24
1,1,1-Trifluoro-2-hydroxy-5-benzyloxy compounds represented by the following formula (I) and optical isomers thereof:
wherein X is -C≡C-, -CH=CH-,
group.
The compounds of the present invention are R-form and S-form when X is -C≡C- and are trans-form and cis-form both of which have respectively R-form and S-form when X is -CH=CH- or
When X is
the compound of the present invention is
The compounds of the present invention are useful for asymmetric introduction of trifluoromethyl group and molecular designing of biologically active substances, ferroelectric liquid crystal compounts and so on.
1,1,1-三氟-2-羟基-5-苄氧基化合物,由下式(I)及其光学异构体代表:
其中 X 为-C≡C-、-CH=CH-、
基团。
当 X 为-C≡C-时,本发明化合物为 R-型和 S-型,当 X 为-CH=CH-或-CH=CH-时,本发明化合物为反式和顺式,两者分别具有 R-型和 S-型。
当 X 为
时,本发明的化合物为
本发明化合物可用于三氟甲基的不对称引入和生物活性物质、铁电液晶化合物等的分子设计。