- The Oxidation of 6- and 7-Aryl-4(3H)-pteridinones by Immobilized Arthrobacter M-4 Cells Containing Xanthine Oxidase
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The preparation of 6- and 7-(pX-phenyl)-4(3H)-pteridinones (X = H, CH3, OCH3) is described.The oxidation of these compounds by (immobilized) Arthrobacter M-4 cells containing xanthine oxidase has been studied.The oxidation monitored by uv spectroscopy usually goes fast, except for 7-(pX-phenyl)-4(3H)-pteridinones (X = CH3, OCH3), which are slowly oxidized.With bacterial cells immobilized in gelatine crosslinked with glutaraldehyde small laboratory-scale oxidations were carried out.Based on spectral data the products of the oxidation reactions are 6- and 7-aryllumazines.
- Meester, Johan W. G. De,Plas, Henk C. van der,Middelhoven, Wouter J.
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p. 441 - 451
(2007/10/02)
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- The Chemistry of Amino Oximes, XIV. Synthesis and Reaction of 2--3-imidazoline 3-Oxides
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2-Benzoyl-4-phenyl-1-(p-tolyl)-3-imidazoline 3-oxide (3b) has been prepared by cyclocondensation of α-(p-toluidino)acetophenone oxime (1a) with phenylglyoxal and transferred into 2--4-phenyl-1-(p-tolyl)-3-imidazoline 3-oxide (5
- Gnichtel, Horst,Moeller, Bernd
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p. 3170 - 3175
(2007/10/02)
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