scholarly journals Selective Adsorption of Metal Ions on Novel Chitosan-Supported Sulfonic Acid Resin.

1997 ◽  
Vol 30 (5) ◽  
pp. 846-851 ◽  
Author(s):  
Kazuo Kondo ◽  
Shin-ichi Nakagawa ◽  
Michiaki Matsumoto ◽  
Takayuki Yamashita ◽  
Isao Furukawa
Keyword(s):  
Metal Ions ◽  
Sulfonic Acid ◽  
Selective Adsorption ◽  
Acid Resin ◽  
Adsorption Of Metal Ions ◽  
Sulfonic Acid Resin

A comparative study on selective adsorption of metal ions using aminated adsorbents

2013 ◽  
Vol 395 ◽  
pp. 230-240 ◽  
Author(s):  
Len Foong Koong ◽  
Koon Fung Lam ◽  
John Barford ◽  
Gordon McKay
Keyword(s):  
Comparative Study ◽  
Metal Ions ◽  
Selective Adsorption ◽  
Adsorption Of Metal Ions

ChemInform Abstract: Sulfonic Acid Resin-Catalyzed Oxidation of Aldehydes to Carboxylic Acids by Hydrogen Peroxide.

ChemInform ◽  
2013 ◽  
Vol 44 (29) ◽  
pp. no-no
Author(s):  
Xiaomei Yang ◽  
Si Tang ◽  
Tianliang Lu ◽  
Chen Chen ◽  
Lipeng Zhou ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Carboxylic Acids ◽  
Sulfonic Acid ◽  
Acid Resin ◽  
Catalyzed Oxidation ◽  
Sulfonic Acid Resin

scholarly journals Ion-exchange-resin-catalyzed adamantylation of phenol derivatives with adamantanols: Developing a clean process for synthesis of 2-(1-adamantyl)-4-bromophenol, a key intermediate of adapalene

2012 ◽  
Vol 8 ◽  
pp. 227-233 ◽  
Author(s):  
Nan Wang ◽  
Ronghua Wang ◽  
Xia Shi ◽  
Gang Zou
Keyword(s):  
Acetic Acid ◽  
Ion Exchange ◽  
Sulfonic Acid ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Phenol Derivatives ◽  
Resin Catalyst ◽  
Acid Resin ◽  
Free Process ◽  
Sulfonic Acid Resin

A clean process has been developed for the synthesis of 2-adamantylphenol derivatives through adamantylation of substituted phenols with adamantanols catalyzed by commercially available and recyclable ion-exchange sulfonic acid resin in acetic acid. The sole byproduct of the adamantylation reaction, namely water, could be converted into the solvent acetic acid by addition of a slight excess of acetic anhydride during the work-up procedure, making the process waste-free except for regeneration of the ion-exchange resin, and facilitating the recycling of the resin catalyst. The ion-exchange sulfonic acid resin catalyst could be readily recycled by filtration and directly reused at least ten times without a significant loss of activity. The key intermediate of adapalene, 2-(1-adamantyl)-4-bromophenol, could be produced by means of this waste-free process.

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