• Textile Coloration and Finishing
• /
• v.1 no.1
• /
• pp.47-53
• /
• 1989

The effect of organic solvent in the dyeing of silk fiber by acid dye was investigated. Acetophenone and benzyl alcohol were shown to be the most effective for the rate of dyeing of silk fiber by Milling Cyanine 5R (C.I. Acid Blue 113), a milling type acid dye, but, with benzyl alcohol, the equilibrium dye uptake was much lower than that in the absence of it. In the presence of solvent, maximum dye uptake shifted to lower temperature than 6$0^{\circ}C$, while without solvent, it was shown at about $60^\circ{C}$. When dyed by Orange II (C.I. acid Orange 7) under same condition equilibrium dye uptake of silk fiber was lower than that for milling type acid dye, and in the presence of benzyl alcohol, still much lower uptake resulted. All these fact reveals that organic solvents in the solvent-assisted dyeing of silk fiber broaden micelle spacings too much, resulting in increased rate of dyeing, and decreased equilibrium dye uptake, contrary to wool.

• Bulletin of the Korean Chemical Society
• /
• v.35 no.11
• /
• pp.3213-3218
• /
• 2014

A metal organic framework-supported Nickel nanoparticle (Ni-MOF-5) was successfully synthesized using a simple impregnation method. The obtained solid acid catalyst was characterized by Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), nitrogen adsorption-desorption and thermogravimetric analysis (TGA). The catalyst was highly crystalline with good thermodynamic stability (up to $400^{\circ}C$) and high surface area ($699m^2g^{-1}$). The catalyst was studied for the oxidation of ethyl benzene, and the results were monitored via gas chromatography (GC) and found that the Ni-MOF-5 catalyst was highly effective for ethyl benzene oxidation. The conversion of ethyl benzene and the selectivity for acetophenone were 55.3% and 90.2%, respectively.

• Bulletin of the Korean Chemical Society
• /
• v.32 no.2
• /
• pp.635-638
• /
• 2011

A simple and efficient method for the synthesis of $\beta$-amino carbonyl compounds by one-pot three-component Mannich reaction of acetophenone, aromatic aldehydes and aromatic amines using a carbon-based solid acid (CBSA), as an effective and reusable catalyst, is described. The present methodology offers several advantages such as simple procedure with an easy work-up, shorter reaction times, and high yields.

• Journal of Photoscience
• /
• v.9 no.1
• /
• pp.13-15
• /
• 2002

The structurally rigid $\alpha$-(o-alkylphenyl) acetophenone derivatives lacking $\beta$-hydrogens, 3,3-dimethyl-2-o-tolylibdan-1-one and 2-o-tolyl-benzofuran-3-one, were prepared and their photochemical behaviors were examined. The former did not give any photoproduct while the latter turned into its enol tautomer. The difference of reactivity of two ketones was attributed to aromatic character of the extol of the benzofuranone. It was concluded that the reaction occurred via photoinduced 1,3-H transfer.

• Journal of the Korean Applied Science and Technology
• /
• v.11 no.2
• /
• pp.105-111
• /
• 1994

Intermediates, 1-benzyl-2-substituted-3-carboxaldehyde[I]-[II], were prepared by the reaction of 2-substituted indole-3-carboxaldehyde with benzyl chloride. Indolylacrylophenone derivatives[III]-[X] were prepared from 1-benzyl-2-substituted-3-carboxaldehyde with acetophenone derivatives. They are as follows; 3-(1'-benzylindole-3'-yl)-1acrylophenone [III] 3-(1'-benzylindole-3-yl)-1(p-methoxy)acrylophenone [IV] 3-(1'-benzylindole-3-yl)-1(p-bromo)acrylophenone [V] 3-(1'-benzylindole-3-yl)-1(p-chloro)acrylophenone [VI] 3-(1'-benzyl-2'-methylindole-3'-yl)-1-acrylophenone [VII] 3-(1'-benzyl-2'-methylindole-3'-yl)-1-(p-methoxy)acrylophenone [VIII] 3-(1'-benzyl-2'-methylindole-3'-yl)-1-(p-bromo)acrylophenone [VIII] 3-(1'-benzyl-2'-methylindole-3'-yl)-1-(p-chloro)acrylophenone [X]

• Journal of the Korean Society of Industry Convergence
• /
• v.12 no.3
• /
• pp.143-147
• /
• 2009

The enantioselective reduction of representative prochiral alkyl-aryl ketones with a new chiral alkoxy-amine-aluminum derivatives from aluminum hydride and ${\alpha},{\alpha}$-diphenyl-${\beta}$-amino alcohols, such as (S)-(-)-2-amino-3-methyl-1,1-diphenylbutan-1-ol(AMDPB) and (S)-(-)-2-(diphenylhydroxy-methyl)pyrrolidine(DPHMP), in THF at $0^{\circ}C$ was studied. In the reduction of alkoxy-amine-aluminum derivatives, acetophenone, propiophenone, isopropiophenone, and butyrophenone are reduced to corresponding aromatic secoundary alcohols with 34~60 % enantiomeric excess of (S)-isomers. For such ketones, the optical induction was enhanced by increasing a size of alkyl groups.

• YAKHAK HOEJI
• /
• v.55 no.6
• /
• pp.462-465
• /
• 2011

Chrysin analogs with 2-heteroaryl groups were synthesized and evaluated for their inhibitory activities against $PGE_2$ and NO production from LPS-induced RAW 264.7 cells. Chrysin analogs were synthesized from 2-hydroxy-4,6-dimethoxy-acetophenone and heteroaryl aldehydes in 3 steps. The tested chrysin analogs showed decreased inhibitory activity against $PGE_2$ and NO production than those of chrysin.

• Journal of the Korean Applied Science and Technology
• /
• v.28 no.2
• /
• pp.240-246
• /
• 2011

UV-Curable hybrid coatings were synthesized to improve the surface properties of plastic film. Organic-inorganic coating solutions were prepared by the sol-gel method using urethane-acrylate oligomer, acrylate monomer, photo initiator and tetraethoxysilane (TEOS). Methacryloyloxypropyltrimethoxysilane(MPTMS) was used as a silane coupling agent to improve chemical interaction between inorganic phases and UV curable acrylate. In this study, the surface hardness and adhesive properties were improved with the use of inorganic component. The experimental results showed that UV-Curable hybrid films containing aliphatic urethane oligomer, hexanedioldiacrylate, trimethylolpropanetriacrylate, hydroxy dimethyl acetophenone exhibited good surface properties. Also, the optimum curing conditions were investigated.

• Journal of the Korean Chemical Society
• /
• v.46 no.2
• /
• pp.139-144
• /
• 2002

The nickel-catalyzed reation of 1,1'-bis(dimethysilyl)ferrocene[1] with carbonyls such as benzaldehyde, 4-cyaonbezaldehyde, trimethylacetaldehyde, acethon, and benzophenone afforded 3-oxa-2,5-disilacyclo-1,1'-ferrocene. In contrast, the reation of [1] with isobutyraldehyde under the same reation condition yielded the diinsertion products formed via the insertion of two aldehyde ligands into the Si-H bond of 1,1'-bis(dimethy)ferrocene.

• Archives of Pharmacal Research
• /
• v.11 no.4
• /
• pp.292-300
• /
• 1988

Metabolism of tranylcypromine (TCP) in rat liver microsomes was studied in vitro using fortified microsomal preparations. As well as unlabeled TCP, two deuterium labeled analogs, TCP-phenyl-$d_{5}$ and TCP-cyclopropyl-$d_{2}$ were used and GC/MS employed which was then metabolized to cinnamaldehyde and hydrocinnamyl alcohol. Schiff bases of TCP with hydrocinnamaldehyde and acetaldehyde were detected and possibility of the metabolic formation of N-ethylidene TCP was proposed. In addition, acetophenone (benzoylacetic acid), benzaldehyde, benzoic acid, and benzyl alcohol were detected as the metabolites. Chemical decomposition studies suggested that parts of the oxidized products might be derived by air oxidation processes. A potential metabolite assumed to be N-ethylidene-1, 2-dihydroxy-3-phenylpropanamine oxide was also detected.