Preparation of Fe(II)/MOF-5 Catalyst for Highly Selective Catalytic Hydroxylation of Phenol by Equivalent Loading at Room Temperature

Table 4

Effect of reaction time on the phenol hydroxylation.

Reaction time (h)	Catechol yield (mass %)	Hydroquinone yield (mass %)	Dihydroxybenzene yield (mass %)	Catechol selectivity (mass %)
0.5	0	0	0	0
1	36	0	36	100
2	53.2	0	53.2	98.6
3	48.7	0	48.7	95