Glutaraldehyde-crosslinked Rhizopus oryzae whole cells show improved catalytic performance in alkene epoxidation

Table 3 Alkene epoxidation in different organic solvents

Entry^a	Solvents	Log P	Initial reaction rate ^b (mmol/L/h)	conversion (%)^c	yield (%)^c
1	Acetonitrile	− 0.33	NA	NA	NA
2	Isopropanol	0.16	NA	NA	NA
3	Ethyl acetate	0.68	231.19 ± 9.56	41.42 ± 5.59	40.51 ± 2.84
4	Trichloromethane	2.0	32.55 ± 0.1	54.22 ± 2.55	45.33 ± 1.31
5	Toluene	2.5	232.88 ± 1.76	99.65 ± 0.07	92.04 ± 3.08
6	Hexane	3.50	206.99 ± 12.47	94.98 ± 5.49	90.78 ± 8.01
7	Acetonitrile	− 0.33	NA	NA	NA
8	Isopropanol	0.16	NA	NA	NA
9	Ethyl acetate	0.68	5.38 ± 1.44	18.22 ± 0.45	10.59 ± 0.63
10	Trichloromethane	2.0	2.55 ± 0.68	42.61 ± 4.53	19.17 ± 5.82
11	Toluene	2.5	5.79 ± 0.19	66.44 ± 0.91	56.24 ± 3.95
12	Hexane	3.50	1.93 ± 0.39	23.26 ± 2.14	18.33 ± 0.92
13	Acetonitrile	− 0.33	NA	NA	NA
14	Isopropanol	0.16	NA	NA	NA
15	Ethyl acetate	0.68	9.59 ± 0.45	13.36 ± 0.11	10.4 ± 0.82
16	Trichloromethane	2.0	6.64 ± 1.1	29.34 ± 0.41	27.72 ± 1.67
17	Toluene	2.5	9.59 ± 0.19	89.02 ± 0.64	76.56 ± 1.22
18	Hexane	3.50	7.19 ± 0.53	54.94 ± 0.32	53.19 ± 1.24

^aA mixture of alkene (1 mmol), octanoic acid (1 mmol), cell (200 mg), H₂O₂ (30% [v/v] aqueous solution, 7.5 mmol), and Na₃C₆H₅O₇ (3.5 mmol) in different organic solvents (1.5 mL) was shaken at 180 rpm and 30 °C for different reaction times. ^bThe value obtained at 30 min for pinene and 60 min for octene and styrene, respectively. ^cThe value obtained at 6 h for pinene, 50 h for octene and 58 h for styrene, respectively

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