The Cure of Carboxy-terminated Diene Polymers and the Role of a Polymer-supported Catalyst

1986 ◽  
Vol 18 (4) ◽  
pp. 266-272
Author(s):  
Bryan G. Willoughby
Keyword(s):  
Supported Catalyst ◽  
Polymer Supported

Polymer-supported catalyst for effective degradation of organic dyes: 100% recovery of catalyst stability and reusability

2017 ◽  
Vol 75 (5) ◽  
pp. 1867-1893 ◽  
Author(s):  
S. Muthupoongodi ◽  
T. Linda ◽  
X. Sahaya Shajan ◽  
Liviu Mitu ◽  
S. Balakumar
Keyword(s):  
Organic Dyes ◽  
Supported Catalyst ◽  
Catalyst Stability ◽  
Polymer Supported

Oxidative “reverse-esterification” of ethanol with benzyl/alkyl alcohols or aldehydes catalyzed by supported rhodium nanoparticles

2016 ◽  
Vol 18 (5) ◽  
pp. 1206-1211 ◽  
Author(s):  
Nitul Ranjan Guha ◽  
Saurabh Sharma ◽  
Dhananjay Bhattacherjee ◽  
Vandna Thakur ◽  
Richa Bharti ◽  
...  
Keyword(s):  
Supported Catalyst ◽  
Rhodium Nanoparticles

A very unusual role of polystyrene stabilized rhodium (Rh@PS) nanoparticles as a supported catalyst is described for “reverse-esterification” of ethanol with benzyl/alkyl alcohols or aldehydes.

scholarly journals Copper-Mediated Nitrosation: 2-Nitrosophenolato Complexes and Their Use in the Synthesis of Heterocycles

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4154 ◽  
Author(s):  
Alexander J. Nicholls ◽  
Andrei S. Batsanov ◽  
Ian R. Baxendale
Keyword(s):  
High Reactivity ◽  
Substitution Pattern ◽  
Decomposition Products ◽  
Novel Structure ◽  
Simple Protocol ◽  
Polymer Supported

A simple protocol yielding ortho-substituted nitrosophenols from phenols is demonstrated, in the form of copper(II) bis(nitrosophenolato) complexes. The developed methodology was applied to a range of substrates, confirming the role of the copper in both the formation and protection of the challenging 1, 2-substitution pattern. Using polymer supported thiourea, the Cu could be stripped from the complexes and thus enabled the isolation or identification of the uncoordinated ligands and their decomposition products, in yields generally low in line with the intrinsic high reactivity of 2-nitrosophenols. The product complexes are useful intermediates as demonstrated in revisiting a formal [4 + 2] cycloaddition with dimethylacetylene dicarboxylate to synthesise bicyclic products in variable yields, revealing the product has a novel structure different from those previously reported in the literature.

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