Oxidation of β,γ-Unsaturated Ketones with Molecular Oxygen Catalyzed by Metal Phthalocyanines and Porphyrins: A Practical Synthesis of Oxophorone
- 1 February 1997
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1997 (02) , 153-155
- https://doi.org/10.1055/s-1997-1165
Abstract
Oxidation of 3,5,5-trimethylcyclohex-3-en-1-one (1) with molecular oxygen catalyzed by metal phthalocyanines (Pc) and 5,10,15,20-tetraphenylporphyrins (TPP) including Mn(II), Mn(III), Fe(II), Fe(III), Co(II), Cu(II), and Ru(II) to 3,5,5-trimethylcyclohex-2-ene-1,4-dione (2) was studied. TPPMn(III)Cl showed an excellent catalytic activity, affording 2 in 93% yield and 1200 turnover number.Keywords
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