Commercial preparation of furan proceeds by way of the aldehyde, furfural, which in turn is generated from pentose containing raw materials like corncobs, as shown in the uppermost equation below. Similar preparations of pyrrole and thiophene are depicted in the second row equations. Equation 1 in the third row illustrates a general preparation of substituted furans, pyrroles and thiophenes fro...

A novel series of thiophenes having biologically active sulfonamide 2-11, 3-methylisoxazole 12, 4-methoxybenzo[d] thiazole 13, quinoline 14, 15, benzoylphenylamino 16, and anthracene-9,10-dione 17 moieties were prepared. Structures of the newly synthesized compounds were established by elemental analysis and spectral data. All newly synthesized compounds were evaluated for their in vitro antica...

The intrinsic charge carrier transporting properties of two isomeric linear- and bent-shaped 7-ring benzo-fused thieno[3,2-b] thiophenes and their octyl-substituted analogues were newly investigated using flash-photolysis (FP-) and field-induced (FI-) time-resolved microwave conductivity (TRMC) techniques. FP-TRMC study in the solid state revealed that octyl-substitution potentially improved th...

In the framework of the interest in nitrothiophenes as drugs or hits with different pharmacological applications and considering that in several instances nitroreduction is an essential step for their biological activity, we have studied a complete series of mono-, di-, and tri-nitrothiophenes (1-6) and by comparison some mononitro benzo[b]thiophenes and benzo[b]furans (7-10). Their electroredu...

The hydrodesulfurization (HDS) process chemistry and reaction network have been modeled at the molecular level. The following sulfur compound types have been considered: mercaptans, sulfides, disulfides, thiophenes (T), benzothiophenes (BT), dibenzothiophenes (DBT), and their alkyl and hydrogenated derivatives. The steric and electronic effects of the alkyl side chain of thiophenic compounds (T...

The present study deals with the antibacterial activity of B. orientalis haemolymph against five bacterial strains namely, Pseudomonas aeruginosa, Proteus mirabilis, Staphylococcus aureus, Escherichia coli and Salmonella typhi. The results of the present study showed the maximum zone of inhibition against Escherichia coli, moderate effects were observed in Pseudomonas aeruginosa, Staphylococcus...

POLI F., Tosi B., DALL'OLIO G. & BRUNI A. 1992. Production of thiophenes in calli and suspension cultures of Tagetes patula L. as influenced by light/dark succession. — Phyton (Horn, Austria) 31 (2): 257-262, 3 figures. English with German summary. HPTLC-densitometry was used to evaluate thiophene accumulation in leaf calli and cell suspension of Tagetes patula. Calli obtained from 7-8 weeks ol...