Asymmetric desymmetrization of meso-pyrrolidine derivatives by enantiotopic selective CH hydroxylation using (salen)manganese(III) complexes
作者:T. Punniyamurthy、Tsutomu Katsuki
DOI:10.1016/s0040-4020(99)00518-9
日期:1999.7
Chiral (salen)manganese(III) complexes 1 catalyzed the asymmetric desymmetrization of N-protectedmeso-pyrrolidine derivatives 3, 6–8, 15 and 18 by enantiotopicselective C-H oxidation in the presence of terminal oxidant iodosylbenzene. The oxidation occurred chemoselectively at the carbon α to the nitrogen atom to afford optically active hydroxypyrrolidine derivatives 9, 11, 13, 16, 19 and 21 that
Composition, Retardation Plate, Liquid-Crystal Display Device, and Method for Producing Retardation Plate
申请人:Li Yi
公开号:US20090174844A1
公开(公告)日:2009-07-09
A composition comprising at least one liquid-crystal compound and a polymer having at least one group of the following formula:
wherein Mp represents a trivalent linking group; L represents a single bond, or a divalent linking group; X represents a substituted or unsubstituted cyclic linking group; Y represents a single bond, or a divalent linking group; Z represents a substituted or unsubstituted cyclic group; n is 1 to 10.
Composition, retardation plate, and liquid-crystal display device
申请人:Li Yi
公开号:US20080090027A1
公开(公告)日:2008-04-17
A composition comprising at least one liquid-crystal compound and a polymer having at least one group of the following formula (A) as the constitutive unit thereof:
wherein Mp represents a trivalent linking group; L represents a single bond, or a bivalent linking group; X represents a substituted or unsubstituted functional group having a cyclic structure.
LIQUID CRYSTAL COMPOSITION, RETARDATION PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND PROCESS FOR PRODUCING RETARDATION PLATE
申请人:LI Yi
公开号:US20100078592A1
公开(公告)日:2010-04-01
A composition comprising at least one liquid crystal compound, and at least one polymer is disclosed. The polymer comprises a constitutional unit represented by a following formula (A) and a constitutional unit derived from a monomer having a fluoroaliphatic group(s):
wherein Mp represents a trivalent group constituting fully or partially a polymer main chain; L represents a single bond or a divalent linking group; and X represents a substituted or non-substituted aromatic condensed ring group.
PHOTOSENSITIVE RESIN COMPOSITION FOR MICROLENS
申请人:Kishioka Takahiro
公开号:US20120156598A1
公开(公告)日:2012-06-21
There is provided a photosensitive resin composition for a microlens. A photosensitive resin composition for a microlens, comprising a component (A), a component (B) and a component (C), wherein the component (A) is a polymer having a maleimide structural unit of Formula (1), the component (B) is a cross-linking agent, and the component (C) is a photosensitizing agent.