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Catalysis Science & Technology
Page 5 of 7
DOI: 10.1039/C8CY00595H
Chemical Science
Edge Article
5 mol% Co-NP, 10-20bar H2, THF,60-80°C, 3-24h[14]
Mes
Ph
R
R
N
N
N
N
N
N
Ph
Ph
N
Ph
Ph
Cy
Ph
N
O
Ph
N
O
Ph
N
2k: 89 (isol.)
R = H:
2b: R = CO2Me: 83 (isol.)
2h: 63 (isol.)
2i: 92 (isol.)
2j: 96 (isol.)
2a:
2c: 88 (isol.)
2d: 98 (isol.)
2e: R = Ph: 99 (isol.)
2f: R = Cy: 67 (isol.)
2g: 84 (isol.)
91 (isol.)
O
N
N
O
Cl
O
N
H
N
O
N
N
2o: 77 (isol.)
N
N
N
N
2l: 99 (isol.)
2m: 73 (isol.)
2n: 39 (isol.)
2p: 62 (isol.)
2q: 98 (isol.)
2r: 95 (isol.)
2s: 97% (isol.)
Figure 5 Co-catalyzed hydrogenation of imines and quinolines. Blue bonds are sites of hydrogenation. Green bonds indicate traces of overhydrogenation. Standard conditions:
0.5 mmol substrate, 2 mL THF, 5 mol% Co-NP, 10 bar H2, 60 °C, 24 h. If not otherwise noted, yields were determined by GC-FID vs. n-pentadecane.14
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Reviews: a) S. Mourdikoudis, L. M. Liz-Marzán, Chem. Mater.
2013, 25, 1465; b) C. Vollmer, C. Janiak, Coord. Chem. Rev.
2011, 255, 2039. c) J. D. Scholten, B. C. Leal, J. Dupont, ACS
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