Synthesis of Aryl Ethers from Aromatic Carboxylic Acids
作者:Lukas Gooßen、Sukalyan Bhadra、Wojciech Dzik
DOI:10.1055/s-0033-1339470
日期:——
meta-substituted carboxylates are converted into para-substituted alkoxyarenes and vice versa. The combined processes provide a convenient synthetic entry to the important class of aromatic ethers from widely available carboxylicacids. A silver/copper bimetallic catalyst system promotes the decarboxylative Chan–Evans–Lam alkoxylation of ortho-substituted aromatic carboxylate salts with tetraalkyl orthosilicates
Lanthanoid complexes supported by retro-Claisen condensation products of β-triketonates
作者:Laura Abad Galán、Alexandre N. Sobolev、Eli Zysman-Colman、Mark I. Ogden、Massimiliano Massi
DOI:10.1039/c8dt03585g
日期:——
reactions, consistent with two examples that have been reported previously. The lability of the lanthanoid cations in the presence of a varying set of potential ligands gave rise to structures where one, two, or three of the molecules involved in the retro-Claisen condensation reaction were linked to the lanthanoid centres. These results, along with measurements of ligand decomposition in the presence of
Process for producing colored molded product of thermoplastic resin
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0050501A1
公开(公告)日:1982-04-28
A process for producing colored molded product of thermoplastic resin excellent in gloss, color tone, transparency, uniformity and various fastnesses which comprises mixing (A) 100 parts by weight of a thermoplastic resin and (B) 0.01-20 parts by weight of a dyed product obtained by dyeing, with an anionic dyestuff, a copolymer of ethylene and one or more monomer(s) copolymerizable having a basic nitrogen or a composition comprising said copolymer and a metal salts of an organic carboxylic acid(s) and thereafter molding the mixture.
A water base ink for ink-jet recording is provided, which makes it possible to perform the discharge operation stably and highly accurately for a long period of time without deteriorating a metal, for example, due to corrosion and/or dissolution even when the ink makes contact with the metal composed of nickel or an alloy containing nickel for a long period of time. The water base ink for ink-jet recording is usable for an ink-jet recording apparatus provided with an ink-jet head having a metal member which is composed of nickel or the alloy containing nickel and which is disposed at least in an ink supply passage for supplying the ink to a discharge section. The water base ink for ink-jet recording contains potassium p-tert-butylbenzoate, a coloring agent which is dispersible or soluble in water, water, and a water-soluble organic solvent.