M-Type SrFe₁₂O₁₉ Ferrite: An Efficient Catalyst for the Synthesis of Amino Alcohols under Solvent-Free Conditions

Table 4

Catalytic ring-opening of styrene oxide with various amines.

Entry	Amine	Conversion (%)^a	Product	Selectivity (%)^b 5 5′		Yield (%)^c 5 5′
				5	5′	5	5′
1		95		74	26	70	12
2		74		83	17	61	10
3		76		74	26	56	14
4		99		0	100	0	98
5		85		0	100	0	84
6		100		0	100	0	99

Reaction conditions: styrene oxide (0.8 mmol), amine (1 mmol), C/S = 0.92 mol%, solvent-free, 17 h, and 60°C. ^aConversion and ^bselectivity were determined by GC; ^c isolated yield.