Reference

Reactions of acetaldehyde, acrolein, acetol, and related condensed compounds under cellulose liquefaction conditions

Reactions of acetaldehyde, acrolein, acetol, and related condensed compounds under cellulose liquefaction conditions. Miller, Ian J.Several substances are used for example 694-35-9 which is its cas registry number.; Saunders, E. Robert (Chem. Div., DSIR, Petone, N. Z.). Fuel, 66(1), 130-5 (English) 1987. CODEN: FUELAC. ISSN: 0016-2361. DOCUMENT TYPE: Journal CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Section cross-reference(s): 23, 45 The title compds. are possible intermediates from the decompn. of cellulose [9004-34-6] under liquefaction conditions. Reactions of these products shows that most of the liquefaction products arise from these or similar intermediates. Thus phenol, light arom. hydrocarbons, indans, and tetralins arise from aldol condensations of acetaldehyde [75-07-0]. High temps. favor the reverse aldol reactions, and hence would inhibit the formation of these compds. 2-Methylbenzofuran [4265-25-2] is formed by the reaction of acetol [116-09-6] and phenol, while xanthenes can be formed by the coupling of aldehydes (HCHO or acetaldehyde) with phenol. The formaldehyde function can arise from deformylation of other aldehydes, although it is also known to be formed in the decompn. of saccharides, e.g. levoglucosenone, where xanthene is formed. .

Reaction partners in the carbonyl-amino reaction in technical sugar juices

Reaction partners in the carbonyl-amino reaction in technical sugar juices. Reinefeld, E.; Bliesener, K. M.; Reinefeld, A. (Inst. Landwirtsch. Technol. Zuckerind., Tech. Univ. Braunschweig, Braunschweig, Ger.). Zucker, 29(6), 287-92 (German) 1976. CODEN: ZUCKAF. DOCUMENT TYPE: Journal CA Section: 44 (Industrial Carbohydrates) The yield and extinction coeff. of UV spectra of model melanoidins obtained by Maillard reaction of carbonyl compds. with amino acids decreased in the order of .gamma.-aminobutyric acid (I) [56-12-2] > lysine [56-87-1] > glutamic acid (II) [56-86-0] > alanine [56-41-7]. The I and II liberated by the hydrolysis of model melanoidins amtd. to .apprx.6.There are some commonly used reagents with their cas registry numbers 8013-17-0 and 56-12-2 in this article.1% and 11%, resp. based on colored substances. The results of the elementary anal. indicated that the model system with acetaldehyde [75-07-0] contained somewhat higher amt. of C and H, and melanoidin from hydroxyacetone [116-09-6] showed general tendency to lowering amt. of C, H and N. .