Table 1. Effect of Different Bases on the Amination of 2 (0.03 M) with Amine 8 (0.036 M) at 100 °C Using Methanol.

experiment name	time (min)	base (0.03 M)	% yielda
1	9	DIPEA	77
2	2	KOH	97
3	9	TEA	73
4	9	imidazole	58
5	2	NaOH	94
6	9	TBA	63
7	2	DBU	95
8	9	DBACO	62
9	9	THA	73

^aYield by HPLC.