20001-01-8

Upstream product

• 98-01-1 furfural 
• 2767-70-6 (p-nitrobenzyl)triphenylphosphonium bromide 
• 100-14-1 4-nitrobenzyl chloride 
• 100-11-8 1-bromomethyl-4-nitro-benzene 
• 99-99-0 1-methyl-4-nitrobenzene 
• 539-47-9 3-(fur-2-yl)crotonic acid 
• 79547-05-0 ethyl (4-nitrophenyl)pyruvate 
• 104-03-0 4-nitrobenzeneacetic acid 

Downstream Products

• 53034-58-5 4-(2ξ-[2]furyl-vinyl)-aniline 
• 128618-75-7 2-[2-(4-aminophenyl)ethyl]furan 
• 1431932-77-2 2-(4-nitrophenethyl)furan 
• 78443-40-0 5-[(E)-2-(4-Nitro-phenyl)-vinyl]-furan-2-carbaldehyde 
• 1415758-84-7 (Z,Z)-2-(p-nitrostyryl)-5-(p-methoxystyryl)furan 
• 1415758-82-5 (Z,E)-2-(p-nitrostyryl)-5-(p-methoxystyryl)furan 
• 1415758-83-6 (E,Z)-2-(p-nitrostyryl)-5-(p-methoxystyryl)furan 
• 1412894-68-8 (E,E)-2-(p-nitrostyryl)-5-(p-methoxystyryl)furan 
• 128618-81-5 2-[2-(4-acetamidophenyl)ethyl]-5-dimethylaminomethylfuran 
• 128618-80-4 2-[2-(4-acetamidophenyl)ethyl]furan 
• 128618-82-6 2-[2-(4-Aminophenyl)ethyl]-5-dimethylaminomethylfuran 

Relevant academic research and scientific papers

Substituent dependent photoreactivity of donor-acceptor substituted phenyl ethenes

Fluorescence and photoisomerization studies on donor-acceptor substituted phenyl conju-gated molecules [e.g. 2-[(1E)-2-(4-nitrophenyl)ethenyl]furan (trans-1) and 2-[(1E)-2-(4-aminophenyl)-ethenyl]furan (trans-2)] in solvents of varying polarity suggest th

Synthesis, spectral properties and photobehaviour of push-pull distyrylbenzene nitro-derivatives

Six novel asymmetric 2,5-distyryl-furan, 2,5-distyryl-thiophene and 2,6-distyrylpyridine derivatives, bearing an electron acceptor (p-nitro) group at one side and an electron donor (p-methoxy or p-dimethylamino) group at the other side, have been prepared. The experimental absorption properties have been measured and compared with the computed parameters. Theoretical and experimental results indicate that one conformational isomer (the compressed one) is largely prevalent in all compounds. The measured radiative and reactive relaxation properties of these donor/acceptor disubstituted compounds were also compared with those of the unsubstituted analogues previously investigated. The presence of the donor/acceptor groups leads to a significant increase of the charge transfer character of both the ground and the excited states and to strong red shifts of the absorption spectra, an effect that can be useful for potential applications in material science. The fluorescence/photoisomerization competition of the furan and thiophene derivatives was found to be rather similar to that of the unsubstituted analogues whereas significant changes were found for the pyridine derivatives where a drastic decrease of fluorescence, a sizable increase of photoisomerization and a predominance of radiationless deactivation to the ground state becomes operative.

Microwave-assisted solvent-free synthesis of (E)-stilbenes

An efficient synthesis of a series of stilbenes is reported using 4-nitrotoluene and substituted arylaldehydes as starting materials in the presence of Cs2CO3 and polyethylene glycol under solvent-free microwave irradiation. Compared with conventional method, this strategy exhibited higher stereoselectivity, shorter reaction times and has a lower environmental impact.

Novel photochemical rearrangement of styrylfurans

A conrotatory photocyclization, a novel [1,9] hydrogen shift, and a lateral ring opening are involved in the rearrangement of a series of 2-(4- alkylstyryl)furans 1 to 5-(3-alkylbutadienyl)benzo[b]furans 2 in dichloromethane. These novel photochemical rearrangements occur with good yields of isolated products.

Studies on antiulcer drugs. V. Synthesis and antiulcer activity of aralkylbenzazoles

A series of 2-alkylamino-5- or 6-aralkyl-substituted benzazoles were synthesized and tested for histamine H2-receptor antagonist and anti-stress ulcer activities. These new compounds showed little or no histamine H2-receptor antagoni

BENZAZOLE COMPOUNDS AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME

The benzazole compounds of this invention can be represented by the following formula [I]: STR1 wherein R 1 is aryl or a heterocyclic group, each of which may have suitable substitutent(s), R 2 is hydroxy, mercapto, lower alkylthio, sulfo, lower al

SYNTHESIS AND PROPERTIES OF STYRYL DERIVATIVES OF 2-FURALDEHYDE

Reaction of 4-X-benzyltriphenylphosphonium halides with 2-furaldehyde and subsequent Vilsmeier formylation gave 5-(4-X-styryl)-2-furaldehydes (X = H, Cl, Br, CN, NO2, CH3, and COOCH3).The UV, IR and 1H-NMR spectra of the prepared substances are discussed