A Novel and Chemoselective Process of N-Alkylation of Aromatic Nitrogen Compounds Using Quaternary Ammonium Salts as Starting Material

Table 2

Chemoselective alkylation of nitrogen heterocyclic rings with tetradecyltrimethylammonium bromide.

	Starting material	Product	Time (h)	Yield (%)
				R = CH3
	1	1b	3	73
	2	2b	4	78
	3	3b	5	76
	4	4b	5	97
	5	5b	18	74
	6	6b	5	46
	7	7b	3	73
	11	11b	6	43

Yields refer to chromatographically pure isolated compounds.