Table 2 Complex activity towards methanol production regenerated by hydrogen peroxide addition rate.

From: Role of catalytic nitrile decomposition in tricopper complex mediated direct partial oxidation of methane to methanol

Entry

Catalyst

H2O2 addition rate (mmol min−1)

Methanol (TON)

Amide (TON)

Carboxylic acid (TON)

1

Cu3L (BF4 source)a

NAa

0.2

0.4

0.4

2

Cu3L (BF4 source)a,b

NAa,b

0.35

NA

NA

3

Cu3L (BF4 source)

1

1.3

0.7

0.3

4

Cu3L (Acetate source)

1

1.3

2.2

NAc

5

Cu3L (ClO4 source)

0.1

1.4

0.9

0.7

  1. Reaction conditions: Copper complex 0.04 mmol(1.3% of total H2O2), acetonitrile 18 eq (57.5 mmol), methane 14 eq (42 mmol), pressure 1 atm, H2O2 total 1 eq (3 mmol).
  2. aAddition of H2O2 (all at once) instead of continuous.
  3. bUrea adduct of hydrogen peroxide used instead of liquid solution, copper complex 0.04 mmol (5% of total H2O2), 0.8 mmol of hydrogen peroxide added.
  4. cAccurate measurement not applicable due to overlap with acetate anion.
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