Epoxide hydrolysis and alcoholysis reactions over crystalline Mo–V–O oxide
作者:Xiaochen Zhang、Min Wang、Chaofeng Zhang、Jianmin Lu、Yehong Wang、Feng Wang
DOI:10.1039/c6ra10212c
日期:——
Crystalline Mo–V–O oxides have been used as a catalyst for the hydrolysis and alcoholysis of propylene oxide to diols and ethers, respectively. Relationships between the active crystal facet, the acidity of Mo–V–O catalysts and the activity have been established. Our results indicate that the a–b plane is the active facet for the hydrolysis reaction.
Lactic acid derivative, liquid crystal composition containing same and liquid crystal device
申请人:CANON KABUSHIKI KAISHA
公开号:EP0175591A2
公开(公告)日:1986-03-26
An optically active lactic acid derivative represented by the following formula (I):
wherein R is a saturated or unsaturated hydrocarbon group of a linear, branched or cyclic structure having 4 to 20 carbon atoms; Ra is -CO-Rb or -CH2-Rc wherein Rb is a releasable chemically active group, and Rc is a releasable chemically active group; and C with * represents an asymetric carbon atom.
下式(I)所代表的光学活性乳酸衍生物:
其中 R 是具有 4 至 20 个碳原子的线性、支链或环状结构的饱和或不饱和烃基;Ra 是-CO-Rb 或-CH2-Rc,其中 Rb 是可释放的化学活性基团,Rc 是可释放的化学活性基团;带 * 的 C 代表不对称碳原子。