Synthesis and evaluation of some variants of the Nefkens’ reagent
摘要:
A series of N-substituted phthalimides have been prepared in an effort to explore synthetic variants of the Nefkens' reagent. Three N-acylphthalimides [R = -CH3, -CH2CH3, and -C(CH3)(3)] were prepared and employed for the protection of a series of representative amines. In addition, an N-methanesulfonylphthalimide and N-(diethylphosphoryl)phthalimide were also prepared. It was determined that among the phthalimides that were prepared N-propanoylphthalimide was the most effective reagent for the protection reaction. (C) 2013 Elsevier Ltd. All rights reserved.
An ink set including an aqueous ink composition and a treatment liquid is disclosed. The aqueous ink composition includes a pigment, a graft polymer including an anionic group at a side chain thereof, and an aqueous medium. The treatment liquid includes an acidic compound that aggregates one or more components of the aqueous ink composition.
ACTIVE ENERGY RAY-CURABLE INK COMPOSITION, INKJET RECORDING METHOD, AND INKJET PRINTED ARTICLE
申请人:FUKAGAWA Reiko
公开号:US20120056930A1
公开(公告)日:2012-03-08
An active energy ray-curable ink composition is disclosed which includes a colorant, a dispersant, a polymerizable compound and water. The dispersant includes a hydrophobic repeating unit including a residue obtained by removing one hydrogen atom from a compound selected from the group consisting of a benzene ring-containing compound, an aromatic hydrocarbon ring-condensed polycyclic compound, a heteromonocyclic compound and a hetero ring-condensed heteropolycyclic compound; a hydrophilic repeating unit including an ionic group; and a hydrophilic repeating unit including a nonionic group.