Synthesis of pyrroles catalyzed by MIL-53(Al)^a.

Entry	Amine	Time (min)	Product	Isolated yieldb (%)
1		15		96
2		20		86
3		30		85
4		30		88
5		30		80
6		15		96
7		15		98
8		15		95
9		15		98
10		15		98
11		15		75c
12		20		90
13		15		98
14		15		95
15		15		98
16		15		50
17		20		Trace
18		15		55 (92)d

^aThe reaction conditions: amines (1 mmol), acetonylacetone (1.2 mmol).

^bIsolated yield.

^cYield of another isomer was obtained in 15%.

^dYield in parenthesis was reported by the reaction with 2.4 equiv. of acetonylacetone.