scholarly journals Efficient Prins cyclization in environmentally benign method using ion exchange resin catalyst

2012 ◽  
Vol 5 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Gauri P. More ◽  
Monica Rane ◽  
Sujata V. Bhat
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Environmentally Benign ◽  
Prins Cyclization ◽  
Resin Catalyst

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.

Effectiveness of Adjustable-Volume Packed-Bed Reactor with an Ion-Exchange Resin Catalyst for Continuous Production

2016 ◽  
Vol 49 (7) ◽  
pp. 668-672 ◽  
Author(s):  
Kota Yamazaki ◽  
Naomi Shibasaki-Kitakawa ◽  
Kazunori Nakashima ◽  
Toshikuni Yonemoto
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Continuous Production ◽  
Packed Bed ◽  
Ion Exchange Resin ◽  
Packed Bed Reactor ◽  
Resin Catalyst

scholarly journals Production of biodiesel from soapstock using an ion-exchange resin catalyst

2008 ◽  
Vol 25 (6) ◽  
pp. 1350-1354 ◽  
Author(s):  
Ji-Yeon Park ◽  
Deog-Keun Kim ◽  
Zhong-Ming Wang ◽  
Joon-Pyo Lee ◽  
Soon-Chul Park ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Resin Catalyst

Hydration of propylene oxide using ion-exchange resin catalyst in a slurry reactor

AIChE Journal ◽  
1984 ◽  
Vol 30 (1) ◽  
pp. 1-7 ◽  
Author(s):  
R. Jaganathan ◽  
R. V. Chaudhari ◽  
P. A. Ramachandran
Keyword(s):  
Ion Exchange ◽  
Propylene Oxide ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Slurry Reactor ◽  
Resin Catalyst
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