RT info:eu-repo/semantics/article T1 Novel environmentally benign procedures for the synthesis of styryl dyes A1 Vasilev, Aleksey A1 Deligeorgiev, Todor A1 Gadjev, Nikolai A1 Kaloyanova, Stefka A1 Vaquero López, Juan J. A1 Álvarez-Builla Gómez, Julio A1 Baeza García, Alejandro K1 Styryl dyes K1 Synthesis K1 Solvent-free K1 Microwave K1 Green chemistry K1 Ciencia K1 Química orgánica K1 Science K1 Chemistry, organic AB A series of styrylpyridinium, styrylquinolinium and styrylbenzothiazolium dyes have been synthesized by novel environmentally benign procedures. The condensation of 4-methylpyridinium methosulphate, 2- or 4-methylquinolinium methosulphate or 2-methylbenzothiazolium methosulphate with aromatic aldehydes was performed under solvent-free conditions or microwave irradiation in the presence of different basic or acidic reagents. The chemical structures of the derived styrylcyanine dyes were confirmed by 1H NMR and UV–vis spectroscopies and elemental analysis. PB Elsevier SN 0143-7208 YR 2008 FD 2008 LK http://hdl.handle.net/10017/4205 UL http://hdl.handle.net/10017/4205 LA eng DS MINDS@UW RD 29-mar-2024