Results 161 to 170 of about 18,912 (218)
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The antimicrobial activity of citral
Experientia, 1971Bestatigung fruherer Feststellungen, dass Citral eine antibakterielle Aktivitat besitzt. Da Neral und Geranial (allein oder zusammen) jedoch wesentlich weniger aktiv sind, muss fur die Citralaktivitat eine bisher nicht identifizierte Substanz verantwortlich sein.
K L, Stevens +3 more
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Organic Preparations and Procedures International, 1979
(1979). 1,4-ADDITION TO CITRAL. Organic Preparations and Procedures International: Vol. 11, No. 2, pp. 97-99.
Meyer Schwarz +2 more
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(1979). 1,4-ADDITION TO CITRAL. Organic Preparations and Procedures International: Vol. 11, No. 2, pp. 97-99.
Meyer Schwarz +2 more
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Conformational equilibria of citral
Journal of Molecular Structure: THEOCHEM, 2007Abstract The conformational behavior of citral was examined by NMR spectroscopy and DFT calculations wherein s - trans conformations were found to dominate over s - cis conformations based on temperature-dependent vicinal and through-space couplings and the calculations.
Jouni Pihlasalo +3 more
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Tetrahedron, 1963
Abstract Citral (I) is cyclized by UV irradiation 1 to 2-isopropenyl-5-methylcyclopentane-carboxaldehyde (II), containing the carbon skeleton of the monoterpenes of ants and catmint. 1,6,6-Trimethylbicyclo[2,1,1]hexane-2α-carboxaldehyde (XII, R = H), produced in lesser amount at the same time, was synthesized from camphor.
R.C. Cookson +3 more
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Abstract Citral (I) is cyclized by UV irradiation 1 to 2-isopropenyl-5-methylcyclopentane-carboxaldehyde (II), containing the carbon skeleton of the monoterpenes of ants and catmint. 1,6,6-Trimethylbicyclo[2,1,1]hexane-2α-carboxaldehyde (XII, R = H), produced in lesser amount at the same time, was synthesized from camphor.
R.C. Cookson +3 more
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Citral a fragrance allergen and irritant
Contact Dermatitis, 2003Citral is a well known contact allergen and a contact irritant. Routine patch testing in the past may have been restricted because of possible irritant (IR) patch test responses. 586 consecutive patients, with hand eczema, were patch tested with a selection of fragrances including citral 2% petrolatum and the European standard series.
Heydorn, S +6 more
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Berichte der deutschen chemischen Gesellschaft, 1907
Gemeinschaftlich mit Langheld1) hat der eine von uns das technische Citral auf sein Verhalten gegen Ozon untersucht. Leitet man in den oligen Aldehyd ohne Losungsmittel Ozon ein, so entsteht ein Sirup, der nach den Resultaten der Analyse durch Anlagerung von 4 Atomen Sauerstoff an 1 Mol. Citral entstanden zu sein scheint.
C. Harries, Alfred Himmelmann
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Gemeinschaftlich mit Langheld1) hat der eine von uns das technische Citral auf sein Verhalten gegen Ozon untersucht. Leitet man in den oligen Aldehyd ohne Losungsmittel Ozon ein, so entsteht ein Sirup, der nach den Resultaten der Analyse durch Anlagerung von 4 Atomen Sauerstoff an 1 Mol. Citral entstanden zu sein scheint.
C. Harries, Alfred Himmelmann
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Synthesis of rosefuran from citral
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1982The action of pyridinesulfotrioxide causes the conversion of the morpholine derivative of citral to rosefuran.
I. M. Zaks, A. M. Moiseenkov
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Production of citral from geraniol
Journal of Chromatography A, 1977Abstract The preparation of porous-layer open-tubular columns for gas—liquid chromatography with graphitized thermal carbon black as a solid support and a polar stationary phase is described. The application of these columns is demonstrated by an example.
Arpino, P +3 more
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Biosynthetic relationship of citral-trans and citral-cis in cymbopogon flexuosus (lemongrass)
Phytochemistry, 1985Abstract Use of [ 14 C, 3 H]-labelled precursors revealed that leaf blades of Cymbopogon flexuosus converted geraniol (3,7-dimethylocta- trans -2,6-diene-1-ol) into citral- trans with loss of pro-(1 S ) hydrogen whereas nerol lost the pro-(1 R ) hydrogen while being converted into citral- cis . Secondly, the citral- trans is converted into citral-
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Cyclodimerization of a citral dienamine
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1991The dienamine (a mixture of isomers) obtained from citral and diethylamine is converted to a mixture of citral anhydro cyclodimers by the action of weak proton-donor agents. The principal reaction product corresponds to [4 + 2]-cycloaddition of 1-diethylamino-7-methyl-3-methylene-1,6-octadiene (the minor component in the starting dienamine) to the ...
A. G. Nigmatov, �. P. Serebryakov
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