2‐Substituted (Azulen‐1‐yl)ethenes

Abstract

An easy and efficient solvent-free synthesis of 1-(azulen-1-yl)-2-aryl-and heteroarylethenes is described. The reaction was performed simply by melting solid mixtures of azulenic Schiff bases and arylacetic acids, the crude products being purified by column chromatography. Limitations of the method were established by study of a large range of aryl

Electrosynthesis and characterization of poly(2-[(E)-2-azulen-1-ylvinyl] thiophene) using polyazulene as model compound

“…The influence of the functionalization on the band gap is seen as changes in the absorption maxima in the visible region. As a series of basic studies on the creation of novel fused ring systems with donor acceptor properties different substituted azulenes that originally were intended as NLO chromophores [9,14] were used as starting material for conjugated polymers.…”

AFM and SEM Characterization of Chemically Modified Electrodes Based on 5-[(azulen-1-yl) methylene]-2-thioxothiazolidin-4-one

“…The azulene derivative was synthesized according to the previous described methods [7]. Acetonitrile (CH 3 CN) and tetra-n-butylammonium perchlorate (TBAP) from Fluka were used as received for the solvent and supporting electrolyte.…”

Synthesis of azulenic compounds with a homo- or hetero-atomic double bond at position 1

“…The research focused on the synthesis of such compounds with aryl as the second substituent at C=C bond as well as with other functions at this bond. 50,51 The first reported pathway employed, together with azulenic Schiff base 35, a large number of arylacetic acids, 36 (Scheme 15). The reaction occurs with very good results in the absence of any solvent or catalyst by melting together the two reagents.…”