Y. Zhou et al./Chemical Papers
ix
screening and optimisation, a maximum isophorone
conversion of 68.0 % of KIP with selectivity of 81.8 %
was presented employing the NHPI/Cu-Al HTLcs
catalytic system under optimised reaction conditions
Li, Y. C., Lee, T. B., Wang, T. Y., Gamble, A. V., &
Gorden, A. E. V. (2012). Allylic C-H activations using
Cu(II) 2-quinoxalinol salen and tert-butyl hydroperoxide.
The Journal of Organic Chemistry, 77, 4628–4633. DOI:
10.1021/jo300372q.
(
4
10 mmol IP, 150 mg Cu-Al HTLcs, 0.75 mmol NHPI,
0 mmol TBHP, 90 C, 24 h, and acetonitrile as a
Liu, J., Zhu, H. Y., & Cheng, X. H. (2009). CrO3/NHPI ad-
◦
sorbed on activated clay: A new supported reagent for allylic
5
solvent). In addition, the repeatability and restora-
bility of Cu-Al HTLcs could avoid contamination of
the metal ion. The efficient and eco-friendly transfor-
mation process detailed here represents a promising
method for oxidising various cyclic olefin analogues.
selective oxidation of Δ -sterols. Synthetic Communications,
31, 1723–1725. DOI: 10.5012/bkcs.2010.31.6.1723.
Liu, G. Y., Tang, R. R., & Wang, Z. (2014). Metal-free allylic ox-
idation with molecular oxygen catalyzed by g-C3N4 and N-
hydroxyphthalimide. Catalysis Letters, 144, 717–722. DOI:
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