Ni(0)-CMC-Na Nickel Colloids in Sodium Carboxymethyl-Cellulose: Catalytic Evaluation in Hydrogenation Reactions
Abstract
:1. Introduction
2. Results and Discussion
Entry | Polymer concentration g/L | Solvent | H2 pressure (bars) | Time (h) | Conversion % |
---|---|---|---|---|---|
1 | 0.5 | H2O | 1 | 7 | 45 |
2 | 0.5 | H2O/iPrOH | 1 | 7 | 87 |
3 | 0.5 | H2O/CHCl3 | 1 | 24 | 5 |
4 | 0.5 | H2O/THF | 1 | 12 | 2 |
5 | 0.5 | H2O/Acetonitril | 1 | 16 | 5 |
6 | 0.5 | H2O/toluene | 1 | 24 | 0 |
7 | 0.5 | H2O/MeOH | 1 | 7 | 90 |
8 | 0.5 | H2O/MeOH | 10 | 5 | 91 |
9 | 0.5 | H2O/MeOH | 20 | 3.5 | 92 |
10 | 0.5 | H2O/MeOH | 40 | 2.0 | 98 |
11 | 1.0 | H2O/MeOH | 1 | 7 | 62 |
12 | 1.5 | H2O/MeOH | 1 | 7 | 57,5 |
13 | 2.0 | H2O/MeOH | 1 | 7 | 40 |
14 | 3.0 | H2O/MeOH | 1 | 7 | 12 |
Entry | Reuses | Conversion % |
---|---|---|
7 | 0 | 90 |
15 | 1 | 81 |
16 | 2 | 63 |
17 | 3 | 40 |
Entry | Substrate | Product | Time (h) | Conversion % | Isolated yield % |
---|---|---|---|---|---|
18 | 48 | 72 | 80 | ||
19 | 48 | 86 | 63 | ||
20 | 36 | 100 | 88 | ||
21 | 48 | 93 | 79 |
3. Experimental
3.1. Instrumentation
3.2. Preparation of the Metal Colloid Precursors
3.3. General Hydrogenation Procedure
3.4. Typical Spectral Data
4. Conclusions
References
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Harrad, M.A.; Valerga, P.; Puerta, M.C.; Houssini, I.; Ali, M.A.; Firdoussi, L.E.; Karim, A. Ni(0)-CMC-Na Nickel Colloids in Sodium Carboxymethyl-Cellulose: Catalytic Evaluation in Hydrogenation Reactions. Molecules 2011, 16, 367-372. https://doi.org/10.3390/molecules16010367
Harrad MA, Valerga P, Puerta MC, Houssini I, Ali MA, Firdoussi LE, Karim A. Ni(0)-CMC-Na Nickel Colloids in Sodium Carboxymethyl-Cellulose: Catalytic Evaluation in Hydrogenation Reactions. Molecules. 2011; 16(1):367-372. https://doi.org/10.3390/molecules16010367
Chicago/Turabian StyleHarrad, Mohamed Anouar, Pedro Valerga, M. Carmen Puerta, Issam Houssini, Mustapha Ait Ali, Larbi El Firdoussi, and Abdallah Karim. 2011. "Ni(0)-CMC-Na Nickel Colloids in Sodium Carboxymethyl-Cellulose: Catalytic Evaluation in Hydrogenation Reactions" Molecules 16, no. 1: 367-372. https://doi.org/10.3390/molecules16010367