. 2013 Apr 26;145(1):213–216. doi: 10.1007/s00706-013-0978-7

Table 3.

Synthesis of N,N-bis(phenacyl)anilines 3 under ultrasound conditions

	R¹	R²	Time/min	Yield^a/%		M.p./°C
	R¹	R²	Time/min	Found^b	Reported	Found^c	Reported
3a	H	H	30	81	9 [5]	235.7–236.5	236–240 [5]
3b	H	4-Me	30	83	64 [2]	102.5–103.3	103 [2]
3c	H	4-Cl	40	77	70 [2]	111.4–112.6	110 [2]
3d	4-Me	H	30	79	– [3]	254.2–255.3	255 [6]
3e	4-Me	4-Me	40	80	70 [2]	127.6–128.9	128 [2]
3f	4-Me	4-Cl	30	81	68 [2]	141.7–143.0	140 [2]
3g	4-Cl	H	30	75	–	158.3–160.2	[25]
3h	4-Cl	4-Me	40	80	–	178.5–181.3	–
3i	4-Cl	4-Cl	50	73	–	181.5–182.7	–

All the isolated products were characterized by their physical properties, by ¹H NMR and IR spectra, and by direct comparison with literature data [2, 5, 6]

^aYield of isolated product

^bThis work