TOF values for MPV reduction of aldehydes and ketones using homogeneous and heterogenised catalysts^a.

Entry	Substrate	Catalyst	TOF (s−1)	TOF (h−1)
1	Propionaldehyde	Al(OiPr)3	1.95 × 10−4	0.70
2	Propionaldehyde	Al(OiPr)3-SiO2	1.84 × 10−4	0.66
3	Propionaldehyde	Al(OiPr)3-TiO2	1.69 × 10−4	0.61
4	Propionaldehyde	Al(OiPr)3-Al2O3	1.78 × 10−4	0.64
5	Cinnamaldehyde	Al(OiPr)3	7.50 × 10−5	0.27
6	Cinnamaldehyde	Al(OiPr)3-SiO2	7.33 × 10−5	0.26
7	Cinnamaldehyde	Al(OiPr)3-TiO2	6.63 × 10−5	0.24
8	Cinnamaldehyde	Al(OiPr)3-Al2O3	7.22 × 10−5	0.26
9	Benzaldehyde	Al(OiPr)3	2.58 × 10−4	0.93
10	Benzaldehyde	Al(OiPr)3-SiO2	2.53 × 10−4	0.91
11	Benzaldehyde	Al(OiPr)3-TiO2	2.32 × 10−4	0.84
12	Benzaldehyde	Al(OiPr)3-Al2O3	2.41 × 10−4	0.87
13	Cyclohexanone	Al(OiPr)3	1.25 × 10−4	0.45
14	Cyclohexanone	Al(OiPr)3-SiO2	1.23 × 10−4	0.44
15	Cyclohexanone	Al(OiPr)3-TiO2	1.15 × 10−4	0.41
16	Cyclohexanone	Al(OiPr)3-Al2O3	1.20 × 10−4	0.43
17	Acetophenone	Al(OiPr)3	8.05 × 10−5	0.29
18	Acetophenone	Al(OiPr)3-SiO2	7.86 × 10−5	0.28
19	Acetophenone	Al(OiPr)3-TiO2	7.22 × 10−5	0.26
20	Acetophenone	Al(OiPr)3-Al2O3	7.69 × 10−5	0.27

^aTOF (s⁻¹) was calculated using the expression: TOF = mmol_product/(mmol_catalyst × time (s)).