preparation of thioglycosides using 2 and their application for glycosylationreactions were attempted. As a result, it was found that the thioglycosides were as excellent glycosyl donors as 4-dodecylphenyl 1-thio-glycosides, which were previously reported by our group, and more useful than the previous donors in terms of fine chemistry in glycosylationreactionactivated with silver triflate and N-iodosuccinimide
Tests of the pseudophase model of micellar catalysis: its partial failure
作者:Clifford A. Bunton、Laurence S. Romsted、Gianfranco Savelli
DOI:10.1021/ja00499a034
日期:1979.2
OPTICAL COMPENSATORY FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:Yoshizawa Masataka
公开号:US20090273740A1
公开(公告)日:2009-11-05
An optical compensatory film comprising an optically anisotropic layer composed of a liquid crystal composition including a liquid crystal compound, wherein the liquid crystal composition contains a copolymer including a repeating unit derived from a monomer of formula [1] and a repeating unit derived from a monomer of formula [2]:
wherein R
0
represents a hydrogen atom, a halogen atom or an alkyl group, L represents a divalent linking group, and n represents an integer of 1-18;
wherein R
11
represents a hydrogen atom, a halogen atom or an alkyl group, L
11
represents a divalent linking group, and R
13
, R
14
and R
15
represents a hydrocarbon group or an aromatic heterocyclic group.