Table 2. Yields and Reaction Mass Efficiency (RME) for the Alkylation Reaction of the N-Lactamides.

ammonium salt	yield (%)a	RME (%)
[N112-Lac-4]I	92	72
[N113-Lac-4]I	95	75
[N113-Lac-6]I	97	76
[N113-Lac-8]I	98	76
[N113-Lac-10]I	83	63
[N113-Lac-12]I	93	70
[N112-Lac-12]I	92	69
[Im3-Lac-4]I	99	74
[Im3-Lac-12]I	97	79
[N113-Lac-4]Br	91	74
[N113-Lac-12]Br	70	53

^aYields were reproducible within ±2.0%.