Results 91 to 100 of about 100,051,810 (181)
Introduction of oxygen-functions into the alpha position of ß-diketones, 8): Acyloxylation of copper(II) acetylacetonate with diacyl peroxides. [PDF]
, 2004 Replacement of only one hydrogen of the methylene group of 2.4-pentanedione (1) (acetylacetone) can be obtained by conversion of copper(II) acetylacetonate (2) with peroxydicarbonates 6 whereas dibenzoylperoxide (3) (DBPO) leads to geminal ...
Beck, Horst, Schank, Kurt
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Occupational exposure to diacetyl and 2,3-pentanedione [PDF]
This criteria document is derived from the NIOSH evaluation of critical health effects studies of occupational exposure to diacetyl and 2,3-pentanedione.
core
, 2006 The 1:1 condensation of 2,4-pentanedione and 1,2-diaminopropane gives a mixture two positional isomers of tridentate mono-condensed product 7-amino-4-methyl-5-aza-3-octene-2-one (HAMAO) and 7-amino-4,6-dimethyl-5-aza-3-heptene-2-one (HADAH) that reacted ...
Ray, Mau Sinha +6 more
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The Thermochemistry of Protonated and Sodiated Clusters Investigated via High-Pressure Mass Spectrometry [PDF]
, 2007 High-pressure mass spectrometry has been employed to investigate hydrogen and sodium bound ion-molecule complexes in the gas phase. Insight into the structure and reactivity of ion-molecule complexes has been gained by examining simple mono-ketones of ...
Furzecott, Matthew
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Shipin yu jixieObjectiveTo compare the effects of roasting and microwave conditions on odor compounds in walnut oil.MethodsIdentification of odor compounds in roasted walnut oil (140 ℃ roasting for 15 and 30 min; 160 ℃ roasting for 15 and 30 min) and microwaved walnut ...
XU Xiaoxue
doaj +1 more source
, 1990 The synthesis of a number of volatile derivative of urea has been carried out. Four pyrimidinone derivatives were chosen as targets: 4,6-dimethyl-2(1 H)-pyrimidinone, 4,6- diphenyl-2(l H) pyrimidinone, 5,5-dichloro-4,6-diphenyl-2- pyrimidinone, and 5,5 ...
Feng Cao
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13C and 15N NMR spectra of 6-substituted bicyclo[3,3,1]7-nonanone nitronates
, 1984 13C and 15N NMR spectra (at the natural abundance level of 15N) have been measured and interpreted for bicyclic reaction products from 1,3,5-trinitrobenzene and cyclohexanone (I), cycloheptanone (II), cyclooctanone (III), acetone (IV), 2,4-pentanedione ...
Vladimír Macháček, Antonín Lyčka
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, 2002 Crystal structure of the title compound is orthorhombic, Pbca, a=7.8689(2)Å, b=9.6519(3)Å, c=31.3579(9)Å. The structure was solved by direct methods and refined by a full-matrix least squares procedure to final R (all)=0.0682 for 2853 unique diffractions
Tunega, Daniel +4 more
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Metal Complexes of Aliphatic Oximes(Ⅳ)
, 1976 2,4-pentanedione-2,4-dioxime, 2,4-pentanedione-2,3,4-trioxime의 Co(Ⅱ)착화합물의 형성조건을 검토하여 본 결과 Co(Ⅱ)착화합물은 Dioxime과 Trioxime이 pH 1~pH 4 범위에서 착화합물을 형성한다.
김상복
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Food Science and Human WellnessDry-cured meat products are considerably popular around the world due to unique flavor. Proteolysis is one of the enzymatic reactions from which flavor substances are derived, which is affected by endogenous proteases.
Mingming Li +6 more
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