Table 2.

Pyrrolidine ring expansion by reaction with different nucleophiles^a.

Entry	Nucleophile	Yield (%)
		36a−e	36a−e
1		46	32
2		56	37
3		11	89
4		23	56
5		35	23

^aReaction conditions: 33: 35a-e in 1: 1 molar ratio, in ACN heated in a autoclave to 180°C for 5–24 h.