Molbank 2007, M535 |
1-benzyl-3-(2-(pyridin-2-yl)hydrazono)indolin-2-one
Bouhfid Rachid 1, Nicolas Joly 2, Vincent Lequart 2, Patrick Martin 2, Mohamed Massoui 1 and El Mokhtar Essassi 1,*
1 Laboratoire de Chimie Organique H¨¦t¨¦rocyclique, Pôle de comp¨¦tences Pharmacochimie Universit¨¦ Mohammed V-Agdal, BP:
1014 Avenue Ibn Batouta,
2 Blood-Brain Barrier Laboratory (EA 2465), IUT of B¨¦thune,
*Author to whom correspondence should be addressed.. E-mail: [email protected]
Received: 9 November 2006 / Accepted: 4 December 2006 /
Published: 31 May 2007
Keywords: isatin, hydrazinopyridine, indoline.
To a solution of 1 (1 g, 4.2 mmol) in 10 mL of ethanol, was added 2-hydrazinopyridine hydrochloride 2 (0.62 g, 4.2 mmol). The mixture was refluxed for 10 h. The precipitate was filtered and washed with ethanol to give compound 3, which was recrystallized from methanol.
Yield: (83%).
Melting Point:
MS (EI): M( m/z) = 328.
1H NMR (300 MHz, CDCl3): 5.05 (s, 2H,
NCH2); 6.55-8.30 (m, 3H, HAr);
12.91 (s,
13C NMR (300 MHz, CDCl3): 43.3 (NCH2); 108.1, 109.5, 118.3, 119.4, 122.7, 127.3, 127.7, 128.8, 138.1, 148.2 (CHAr); 121.0, 128.7, 135.6, 141.0 (Cq); 155.3 (C=Nimine); 161.7 (C=Oamide).
Elemental analysis: Calculated for C20H16N4O: C, 73.15%; H, 4.91%; N, 17.06%; Found: C, 73.01%; H, 5.05%; N, 16.89%.
References:
1. Verma, M.; Pandeya, S.N.; Singh, K.N.; Stables, J.P. Acta
Pharm. 2004, 54, 49.
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