Table 2.

Synthesis of formanilides in [ChCl][ZnCl₂]₂ as a solvent/catalyst system.

Substrate	Substrate	Product	Time (h)	Yielda (%)	M.p. °C (Lit)
			4	88	105 (103–105)84
			3.5	72	126 (121–122)85
			3.5	89	51 (50–52)86
			3.5	85	76 (73–77)87
			4	83	156–157 (155–157)88
			4	68	138 (135–137)88
			4.15	66	177 (175–177)89
			4.45	72	179
			3.5	91	53 (48–51)90
			4	74	79 (78.8–79.8)91
			3.5	81	55 (51–53)92
			4	68	135 (129–132)92
			4	87	186 (182–187)93
			8	< 5	–
			10	NRb	–
			10	NRb	–

Reaction conditions: Aniline derivatives (1.0 mmol), formamide (1.0 mmol) and 3 mL of [ChCl][ZnCl₂]₂.

^aIsolated yield.

^bNo reaction.