2002 C-C bond formation

C-C bond formationO 0282

04 - 081Quaternary Ammonium Salt-Assisted Synthesis of Extended π-Systems from Methyldiazines and Aromatic Aldehydes. —Methyldiazines such as (I) and (IV) readily react with aromatic aldehydes (II)in a hot solution of aqueous NaOH in the presence of a quaternary ammoniumsalt and in the absence of any organic solvent to yield the correspondingcondensation products (III) and (V), resp., in high yield. — (VANDENEYNDE, JEAN JACQUES; PASCAL, LAURENT; VAN HAVERBEKE,YVES; DUBOIS, PHILIPPE; Synth. Commun. 31 (2001) 20, 3167-3173; Dep.Org. Chem., Univ. Mons-Hainaut, B-7000 Mons, Belg.; EN)

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