On the reactivity of some 2-methyleneindolines with β-nitroenamines, α-nitroalkenes, and 1, 2-diaza-1, 3-butadienes
…, P Filippone, C Forzato, G Giorgi, S Morganti, P Nitti…
Index: Attanasi, Orazio A.; Favi, Gianfranco; Filippone, Paolino; Forzato, Cristina; Giorgi, Gianluca; Morganti, Stefano; Nitti, Patrizia; Pitacco, Giuliana; Rizzato, Egon; Spinelli, Domenico; Valentin, Ennio Tetrahedron, 2006 , vol. 62, # 26 p. 6420 - 6434
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Citation Number: 17
Abstract
A study of the behaviour of some electron-rich 2-methyleneindolines (1–3) with different electron-poor reagents (formation of new carbon–carbon and nitrogen–carbon bonds) has furnished interesting results from both synthetic and the mechanistic viewpoints. Enamines 1– 3 have been reacted with the β-nitroenamines 4–7 (reaction CeCl3· 7H2O promoted), giving the polymethine dyes 14–23. The same bases 1–3 have been nitroalkylated with the ...