98111-83-2Relevant academic research and scientific papers
Activation of aryl chlorides in water for Suzuki coupling with a hydrophilic salen-Pd(II) catalyst
Shahnaz, Nasifa,Puzari, Amlan,Paul, Bidisha,Das, Pankaj
, p. 55 - 58 (2016/08/18)
For exploiting aqueous condition, we have designed a simple water-soluble palladium Schiff-base catalyst for Suzuki-Miyaura reactions of aryl halides with arylboronic acids. The reactions could be performed in neat water with aryl bromides and iodides at room temperature and with aryl chlorides at 100 °C. Good-to-excellent yields of cross-coupling products were obtained with a diverse range of aryl halides including heteroaryl halides. Interestingly, the homogeneous catalyst could be conveniently recycled with aryl bromides or chlorides for at least four times, although a progressive decrease in the product yields were noticed.
Schiff base metal manganese complex and preparation method and application thereof
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, (2016/10/09)
The invention discloses a Schiff base metal manganese complex and a preparation method and application thereof.The method includes the steps of making salicylaldehyde and aniline react to obtain N-phenyl salicylaldehyde imine, making N-phenyl salicylaldehyde imine react with sulfamic acid and sodium carbonate with urea as the catalyst to obtain sulfo salicylic aldehyde, making sulfo salicylic aldehyde react with cyanide urea to obtain sulfo salicylic aldehyde condensation cyanide urea ligand, and coordinating ligand with metal manganese salt to obtain the Schiff base metal manganese complex.Sulfo salicylic aldehyde condensation cyanide urea ligand obtained through the technical scheme has excellent water solubility; the metal manganese complex obtained by coordinating ligand with metal manganese salt has high capacity for catalyzing peroxide hydrogen decomposition and producing many bleaching activity components; the complex further contains amido bonds or like amido bonds and cyano groups, so hydrogen peroxide decomposition can be accelerated to produce bleaching activity substances; due to cyano groups of short carbon chains, peroxide hydrogen decomposition can be easily catalyzed by the Schiff base metal manganese complex, the complex can be applied for bleaching peroxide hydrogen of fabric at low temperature, and the processed fabric has the advantages of being high in whiteness and excellent in capillary effect.
Aqueous-phase hydroformylation of 1-octene using hydrophilic sulfonate salicylaldimine dendrimers
Hager, Emma B.,Makhubela, Banothile C.E.,Smith, Gregory S.
, p. 13927 - 13935 (2013/01/15)
Water-soluble dendritic ligands based on tris-2-(5-sulfonato salicylaldimine ethyl)amine (5) and DAB-(5-sulfonato salicylaldimine) (6) (DAB = diaminobutane) were synthesized by means of Schiff base condensation and sulfonation reactions. These dendritic l
Rate Control by Restricting Mobility of Substrate in Specific Reaction Field. Negative Photochromism of Water-Soluble Spiropyran in AOT Reversed Micelles
Sunamoto, Junzo,Iwamoto, Kiyoshi,Akutagawa, Masashi,Nagase, Masahiro,Kondo, Hiroki
, p. 4904 - 4907 (2007/10/02)
The thermocoloration of a water-soluble spiropyran, 1',3',3'-trimethylspiro-6-sulfonic acid(1), which has been newly synthesized in this work, in the anionic AOT reversed micelles has been investigated in order to evaluateth
