Lobry de Bruyn — Alberda van Ekenstein transformation

Angyal SJ (2001) The Lobry de Bruyn-Alberda van Ekenstein Transformation and Related Reactions. 215 1-14... [Pg.231]

Albrecht M (2004) Supramolecular Templating in the Formation of Helicates. 248 105-139 Ando T, Inomata S-I, Yamamoto M (2004) Lepidopteran Sex Pheromones. 239 51-96 Angyal SJ (2001) The Lobry de Bruyn-Alberda van Ekenstein Transformation and Related Reactions. 215 1-14... [Pg.253]

Aldoses generally undergo benzilic acid-type rearrangements to produce saccharinic acids, as well as reverse aldol (retro-aldol) reactions with j3-elimination, to afford a-dicarbonyl compounds. The products of these reactions are in considerable evidence at elevated temperatures. The conversions of ketoses and alduronic acids, however, are also of definite interest and will be emphasized as well. Furthermore, aldoses undergo anomerization and aldose-ketose isomerization (the Lobry de Bruyn-Alberda van Ekenstein transformation ) in aqueous base. However, both of these isomerizations are more appropriately studied at room temperature, and will be considered only in the context of other mechanisms. [Pg.281]

The reaction of carbohydrates in alkaline or acidic aqueous solutions results in a myriad of products, many of which have been recognized for well over a century. The number of identified products has greatly increased in recent years, owing to the development of sophisticated techniques for separation and identification. With the exception of anhydro sugars and oligosaccharides, found as concentration-dependent, equilibrium constituents (reversion products) in acidic solutions, all of the products result from reactions of intermediates present in the Lobry de Bruyn-Alberda van Ekenstein transformation. [Pg.161]

Lobry de Bruyn-Alberda van Ekenstein transformation 693 Lock and key theory 478 Log phase of growth 470 Lon protease 628 Loricin 439... [Pg.922]

Speck, John C., Jr., The Lobry de Bruyn-Alberda van Ekenstein Transformation, 13, 63-103 Spedding, H., Infrared Spectroscopy and Carbohydrate Chemistry, 19, 23-49 Sprinson, D. B., The Biosynthesis of Aromatic Compounds from d-G1u-cose, 16, 235-270... [Pg.560]

Lipoaldehydes, II, 123 Lipositol, III, 47, 343 Lithium aluminum hydride, for hydrogenation of 1,2-epoxides, V, 22 Lithium chloride, influence upon the activity of pancreatic amylase, V, 237 Lithium hypochlorite, III, 137 Liver, fat conversion by isolated, II, 141 ketogenesis in isolated, II, 155 Lobry de Bruyn-Alberda van Ekenstein transformation, III, 113 Locust bean mucilage, IV, 267 Lucerne seed, emulsins, V, 63 Lucerne seed, mucilage, IV, 266, 267 Lupinus albus, galactan from seed of, II, 248... [Pg.372]

In weakly alkaline solutions aldoses and ketoses undergo rearrangements. An example is the Lobry de Bruyn -Alberda van Ekenstein transformation of... [Pg.43]

Fig. 2-32. Lobry de Bruyn-Alberda van Ekenstein transformation of sugars. 1, D-Glucose 2, 1,2-enediol 3, D-mannose 4, D-fructose 5, 2,3-enediol 6, D-allulose.

Speck, John C., Jr., The Lobry de Bruyn —Alberda van Ekenstein Transformation, 13, 63—103... [Pg.527]

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