Study of the influence of 1°,2°-alcohols on the formation of imines from 6-chloro-3-formylchromone (1) and 2-aminobenzothiazole (2) in THF (20 mL) at RT (10 h) and reflux (2 h).

Entry	Alcohol	Eq.	Product	Yield (%)
1	1-BuOH	1	4f	96
2	1-BuOH	10	4f	95
3	2-BuOH	1	4f	96
4	Cyclohexanol	1	4f	95
5	—a	—	4f	96
6	MeOHb	1	4g	95
7	—a,b	—	4g	96
8	—a,b,c	—	4e	95

^aNo alcohol was used.

^b2-Aminobenzothiazole.

^c6-Hydroxy-3-formylchromone.