Synthesis of Unsymmetrical Diarylureas via Pd-Catalyzed C–N Cross-Coupling Reactions
摘要:
A facile synthesis of unsymmetrical N,N'-diarylureas is described. The utilization of the Pd-catalyzed arylation of ureas enables the synthesis of an array of diarylureas in good to excellent yields from benzylurea via a one-pot arylation-deprotection protocol, followed by a second arylation.
This heat-sensitive recording material is configured to contain, as a color-developing compound, at least one compound represented by one of formulas (1)-(3):
这种热敏记录材料作为显色化合物,至少含有一种由式(1)-(3)之一表示的化合物:
Heat-Sensitive Recording Material
申请人:Nippon Kayaku Kabushiki Kaisha
公开号:US20170297355A1
公开(公告)日:2017-10-19
This heat-sensitive recording material is configured to contain, as a color-developing compound, at least one compound represented by one of formulas (1)-(3):
[EN] OIL-IN-WATER TYPE EMULSION OF ACTINIC-RAY-CURABLE RESIN COMPOSITION, AND THERMAL RECORDING MATERIAL<br/>[FR] ÉMULSION DE TYPE HUILE DANS EAU D'UNE COMPOSITION DE RÉSINE DURCISSABLE PAR RAYONNEMENT ACTINIQUE, ET MATÉRIAU D'ENREGISTREMENT THERMIQUE<br/>[JA] エネルギー線硬化型樹脂組成物の水中油滴型エマルション及び感熱記録材料