The title compound, 2C(17)H(13)F(3)N(3)O(+)·SO(4) (2-)·2H(2)O, crystallizes with four independent cations (A, B, C and D) in the asymmetric unit, which is composed of two groups of two cations, one anion and two water mol-ecules (Z' = 2). The dihedral angle between the mean planes of the 4-hydroxy-phenyl and quinolinium groups is 8.9 (7)° in A, 30.1 (6)° in B, 28.8 (8)° in C and 12.8 (1)° in D....

A new chemo-enzymatic route to both isomers of 2-hydroxy-4-phenylbutyric acid is reported. The key step is the lactonase-catalyzed hydrolysis of cis- and trans-2-hydroxy-4-phenyl-4-butyrolactones followed by hydrogenation over Pd/C to afford optically pure 2-hydroxy-4-phenylbutyric acid.

1 3-[2-(4-Bromphenyl)hydrazono]-5-phenyl-furan-2(3H)-one () was used for preparation of some novel pyrazole, pyridazinone, oxadiazole, triazole, thiazolidine and thioxopyrimidine derivatives. Some of the prepared products were tested for anti-avian influenza virus activity and revealed promising antiviral activity against H5N1 virus [A/Chicken/Egypt/1/20 % (H5N1)] by determination of both E...

The ability to photoinduce enantiomeric excess from the chirality of circularly polarized light (CPL) is pertinent to the study of the origin of homochirality in biomolecules. Such CPL-induced reactions, including both chirality generation and formation of partial enantiomeric imbalance, from nonchiral starting compounds have been known, however, only for the conversion of diarylolefins into ch...

The mol-ecule of the title compound, C(19)H(15)N(3)O, is approximately planar and displays a trans configuration with respect to the C=N and N=N double bonds. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring motif. The dihedral angles between the hydroxy-phenyl ring and the phenyl and benzene rings are 4.31 (8) and 6.60 (8)°, respectively. The dihedral angle between the phenyl and ...

The resinous wood of Aquilaria sinensis, known as agarwood (Chen Xiang in Chinese), is traditionally used for the treatment of abdominal pain, vomiting, circulatory disorders, and dyspnea. Four new 2-(2-phenylethyl)-4H-chromen-4-one derivatives, namely 7-methoxy-2-[2-(4'-hydroxy-phenyl)ethyl]chromone (1), 7-hydroxy-2-[2-(4'-methoxyphenyl)ethyl]chromone (2), 5,6-dihydroxy- 2-[2-(3'-hydroxy-4'-me...

Azobenzene, with two phenyl rings separated by an azo (–N=N–) bond, serves as the parent molecule for a broad class of aromatic azo compounds. These chromophores are versatile molecules, and have received much attention in research areas both fundamental and applied. The strong electronic absorption maximum can be tailored by ring substitution to fall anywhere from the ultraviolet (UV) to visib...

In the present investigation, a series of novel isoxazoline derivatives 4a-i were synthesized by cyclization of 1-(2’-hydroxy phenyl)-5-(6’’-methoxynaphthalen)-2-propene-1-one (i.e. Chalcones) 3a-i with hydroxylamine hydrochloride in dimethyl formamide and sodium acetate to obtained 3-(2’-hydroxy phenyl)-5-(6’’-methoxynaphthalen)-2-isoxazolines 4a-i. The structures of newly synthesized compound...