نتایج جستجو برای: naphthol isomers
تعداد نتایج: 11549 فیلتر نتایج به سال:
One-pot multicomponent condensation of β-naphthol, aromatic aldehydes, acetamide or urea in the presence of potassium hydrogen sulfate was carried out under solvent-free condition to afford amidoalkyl naphthols in 83%~96% yields.
A microwave-assisted Pd(0)-catalyzed alkyne migratory insertion/β-naphthol dearomatization cascade process has been accomplished to access a variety of spirocyclic compounds bearing all-carbon quaternary stereogenic centers in high yields with excellent chemoselectivities.
In the title compound, C(22)H(21)NO(5)S, the 2-naphthol group and the thio-phene ring are almost coplanar, with a dihedral angle of 5.75 (7)°. The structure is stabilized by intra-molecular O-H⋯O, O-H⋯N and C-H⋯S, and inter-molecular C-H⋯O hydrogen-bonding inter-actions.
in the present study, theoretical chemical reactivates photo isomerization in cis-retinal as a natural photo switch in vision. dft hybrid functional, b3lyp and, post-hf method, were the theoretical methods applied utilizing g09 software. 6-31g+ (d,p) basis set employed for structural optimizations, and single point computations performed using b3lyp/6-31g+(d,p). the isomers cis molecule retinal...
the enzymatic potential of the cultured plant cells can be employed for bioconversion purposes. plant enzymes are able to catalyze regio- and stereo-specific reactions, and therefore can be applied for the production of desired substances. the biotransformation of foreign substrates with suspension cells of peganum harmala was tested with (±) phenylethyl propionate. the callus cultures of pegan...
Cucurbit[5]uril-metal complex-induced room-temperature phosphorescence of α-naphthol and β-naphthol.
Similar to the larger members of the cucurbituril family, such as cucurbit[8]uril (Q[8]), the smallest member, cucurbit[5]uril (Q[5]), can also induce room-temperature phosphorescence (RTP) of α-naphthol (1) and β-naphthol (2). The relationship between the RTP intensity of 1 and 2 and the concentration of Q[5] or Q[8] suggests that the mechanism underlying the Q[5] complex-induced RTP is differ...
Biliary polycyclic aromatic hydrocarbon (PAH) and alkylphenol (AP) metabolites, hepatic gene expression, and corresponding enzyme activities were determined in the deep-sea fish Alepocephalus rostratus from two sites within the Mediterranean. Biliary metabolites included the hydroxylated PAH metabolites (OH-PAHs) 1-naphthol, 2-naphthol, 9-fluorenol, 9-phenanthrol, and 1-pyrenol and the APs 4-no...
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