Table 1 Photocatalytic transformation of BPh4−

From: Charge-transfer complexation of coordination cages for enhanced photochromism and photocatalysis

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Entry

Catalyst

Solvent

Atmos.

Conv. (%)a

1

1-NTf2

CH3OH

O2

92 (100b)

2

1-NTf2

CH3OH

air

81

3

/

CH3OH

O2

trace

4c

1-NTf2

CH3OH

O2

trace

5

1-NTf2

CH3OH

N2

6

6d

Cp2ZrCl2

CH3OH

O2

trace

7e

L1-NTf2

CH3OH

O2

31

8

1-NTf2

CH3COCH3

O2

43

9

1-NTf2

DMSO

O2

51

10

1-NTf2

CH3CN

O2

76

11

1-OTf

CH3OH

O2

87

12

1-Cl

CH3OH

O2

78

13f

1-BPh4

CH3OH

O2

98

14

1-NO3

H2O

O2

88b (99g)

  1. aThe conversion is equal to the yields of biphenyl and phenol (1:2 molar ratio) determined by 1H NMR.
  2. bReaction time 12 h.
  3. cNo light.
  4. dCatalyst amount: 60 mol%.
  5. eCatalyst amount: 30 mol%.
  6. f1-BPh4 (8 BPh4− ions per cage) and NaBPh4 were used in 1:2 molar ratio so that the amount of the cage catalyst was 10 mol%. The yield was calculated based on the total amount of BPh4−.
  7. gReaction time 18 h.
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