Catalytic preparation of aryl methyl ketones using a molecular oxygen-containing gas as the oxidant

Synthesis and catalytic use of complexes having the following structure:

• 8
• Wherein:
• (a) R1 represents substituted and nonsubstituted phenyl (Ph), pyridyl, pyrimidinyl, pyrazinyl, pyrrolyl, pyrrolinyl, imidazolyl, naphthyl, quinolyl, isoquinolyl, quinazolinyl, quinoxalinyl, indenyl, indolyl, 4-isobenzazolyl, indoleninyl, anthracyl, phenanthrolinyl or pyrrolidyl, piperidyl, cycloalkyl groups or any combination thereof;
• (b) R2 represents substituted and nonsubstituted phenyl (Ph), naphthyl, anthracyl, indenyl, cycloalkyl groups or any combination thereof;
• (c) Py represents substituted and nonsubstituted pyridyl, pyrimidinyl, pyrazinyl, pyrrolyl, pyrrolinyl, imidazolyl, quinolyl, isoquinolyl, quinazolinyl, quinoxalinyl, indolyl, 4-isobenzazolyl, indoleninyl, phenanthrolinyl, pyrrolidyl, piperidyl or any combination thereof;
• (d) X and Y can be the same or different, and represent hydrogen (H), hydroxyl (OH), alkyl (R), alkoxy (RO), cycloalkyl, halogen, nitro groups or any combination thereof;
• (e) Z represents a hydroxyl group (OH) or negative oxygen ion (O−);
• (f) W represents an anion such as a halide, nitrate, sulfate, acetate, trifluoroacetate, trifluoromethanesulfonate, tetrafluoroborate, hexafluorophosphorate, perchlorate, oxalate, carbonate, or any combination thereof;
• (g) P represents a hydrogen atom (H) or negative charge ({circle over (−)});
• (h) M represents a metal ion from groups IB, VB, VIB, VIIB or VIII in the periodic table of the elements.