Pd‐Catalyzed Atropselective C−H Olefination Promoted by a Transient Directing Group
作者:Rohit Kumar、Devesh Chandra、Upendra Sharma
DOI:10.1002/adsc.202101242
日期:2022.2.15
A Pd(II)-catalyzed atropselective olefination of biaryls with maleimides is reported using chiral transient directing group (CTDG) strategy L-tert-leucine is used as a chiral auxiliary to obtain atropselective biaryl aldehydes with enantiomeric excess ranging from 70 to 99%. The method is also applicable for other olefins such as acrylonitrile, phenyl vinyl sulfone, and N-tert-butyl acrylamide, providing
Asymmetric [3+2] annulation of allenes with maleimides catalyzed by dipeptide-derived phosphines: facile creation of functionalized bicyclic cyclopentenes containing two tertiary stereogenic centers
作者:Qianyi Zhao、Xiaoyu Han、Yin Wei、Min Shi、Yixin Lu
DOI:10.1039/c2cc16904e
日期:——
D-Threonine-L-tert-leucine-derived bifunctional phosphine, Cat. 11, catalyzedhighlyenantioselective [3+2] annulation of maleimides with allenes has been disclosed, allowing the synthesis of optically active functionalized bicyclic cyclopentenes containing two tertiary stereogenic centers in good to high yields along with good to high enantioselectivities.
Ink jet color filter resin composition, color filter production process
申请人:SEIKO EPSON CORPORATION
公开号:EP1048700A1
公开(公告)日:2000-11-02
A resin composition for producing a color filter by an ink jet system contains (A) a colorant, (B) a binder resin and (C) a solvent having a boiling point of 245°C or more at normal pressure.
The color filter from the resin composition is produced by discharging the above resin composition from an ink jet head into light transmitting regions on the surface of a transparent substrate having banks formed thereon to store the resin composition in the light transmitting regions defined by the banks; forming a pixel pattern by drying the resin composition stored in the light transmitting regions; and forming a protective layer to cover the pixel pattern.
Ink jet color filter resin composition, color filter and color filter production process
申请人:——
公开号:US20020128351A1
公开(公告)日:2002-09-12
A resin composition for producing a color filter by an ink jet system contains (A) a colorant, (B) a binder resin and (C) a solvent having a boiling point of 245° C. or more at normal pressure.
The color filter from the resin composition is produced by discharging the above resin composition from an ink jet head into light transmitting regions on the surface of a transparent substrate having banks formed thereon to store the resin composition in the light transmitting regions defined by the banks; forming a pixel pattern by drying the resin composition stored in the light transmitting regions; and forming a protective layer to cover the pixel pattern.