id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
eurjchem-870	Marzouk, Magda Ismail; Sayed, Galal Hosni; Abd ElHalim, Mohamed Said; Mansour, Salma Yehia	Synthesis and characterization of novel pyrazolone derivatives	2014	9	.pdf	application/pdf	6663	395	72	Color: White. Yield: 65 %. M.p.: 235‐237 °C. FT‐IR (KBr, , cm‐1): 3011 (NH), 1597 (C=N), 1454 (NCS). 6‐Amino‐4‐(4‐methoxyphenyl)‐1,3‐diphenyl‐1H‐ pyrazolo[3,4‐b]pyridine‐5‐carbonitrile (4) A mixture of pyrazolone 3 (2.36 g, 0.01 mol), malononitrile (0.66 g, 0.01 mol), ammonium acetate (2.31 g, 0.03 mol,), and p‐ anisaldehyde (1.36 mL, 0.01 mol) was fused for 15 h at 140‐170 °C, the reaction mixture was poured onto water, to give the solid product 4 which was washed with water (3×30 mL), dried, and recrystallized from benzene:ethanol (2:1) (Scheme 1).	cache/eurjchem-870.pdf	txt/eurjchem-870.txt