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

Table 2

Catalytic experimental results of phenol hydroxylation.

Catalyst	Content of Fe^2+ (mass %)	Catechol yield (mass %)	Hydroquinone yield (mass %)	Dihydroxy benzene yield (mass %)	Catechol selectivity (mass %)
Fe(II)/MOF-5	0	—	—	—	—
	1	24.2	2.6	27.8	86
	2	42.3	1.2	43.5	95.9
	3	53.2	—	53.2	98.6
	4	40	—	40	97.4
	5	23.3	—	23.3	95.6
	6	15.1	—	15.1	96.2

Reaction conditions: reaction temperature, 80°C; reaction time, 2 h; catalyst-to-phenol mass ratio, 0.053.