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4H-Chromen-4-one

Spectrofluorimetric Determination of Al3+ Using 3-hydroxy-2-(4-methoxy phenyl)-4H-chromen-4-one as Analytical Reagent. [Pg.89]

Ma W, Li X, Yang J, Liu Z, Chen B, Pan X (2006) A convenient synthesis of aryl ferrocenylethynyl ketones and 2-ferrocenyl-4H-chromen-4-ones via palladium-catalyzed carbonylation coupling. Synthesis 2489-2492... [Pg.86]

Vanadium has been determined in soils and sewage with the use of pyrogallol [75]. Phenylfluorone was used for determining V in steel [63], 1,5-diphenylcarbazide — for determining V in industrial, biological, and soil samples [109], and 6-chloro-3-hydroxy-7-methyl-2-(2-thienyl)-4H-chromen-4-one for determining V in steel, flue dust, and waters [110]. [Pg.462]

Trimethylsilyl)methylenetriphenylpbosi 4H-Chromen-4-ones. This Wittig i the a-acylphosphorane by elimination thr intramolecular Wittig reaction present.s ium the formation of a 4//-chromen-4-one is... [Pg.458]

The total synthesis of the natural 4H-chromen-4-one ( )-oxalicumone C involves the reaction of a 2, 6 -dihydroxyacetophenone with methyl... [Pg.504]

Natural bioactive flavonoid quercetin (Qc) (2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-4H-chromen-4-one) is poorly dissolved in water (<0.1%), slightly better in ethanol (r- 0.2%), and much... [Pg.181]

NC-066.0 2-methyl-3-piperidino-4H-chromen-4-one 2-methyl-3-piperidinochromone 305 3.9 W39u 7674... [Pg.460]


See other pages where 4H-Chromen-4-one is mentioned: [Pg.89]    [Pg.47]    [Pg.261]    [Pg.263]    [Pg.265]    [Pg.505]    [Pg.506]    [Pg.148]    [Pg.460]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.461]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.462]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.463]    [Pg.464]    [Pg.464]    [Pg.464]    [Pg.464]   


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277-Chromen-2-one

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