1936
DOI: 10.1002/cber.19360690228
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Zur Kenntnis der Cellulose nativer Zusammensetzung aus Baumwolle, II. Mitteil. (Mitbearbeitet von Walter Hahn und J. Watson Pedlow)

Abstract: Die von Fraktion A befreite gelbgrune, alkoholische Losung wird mit soviel 96-proz. Alkohol versetzt, da13 eine Alkohol-Konzentration iiber 90 yo erreicht wird. Man la& uber Nacht im Eisschrank stehen und saugt dam ab. Wichtig ist, wahrend des Absaugens darauf zu achten, daS der Niederschlag stets mit Alkohol bedeckt bleibt, da er, in Beruhrung mit der Luft, begierig Wasser anzieht und zu einer zahen'Masse zerflieat, die durch Verstopfen der Poren des Gooch-Tiegels weiteres Absaugen vereitelt. Die trockne Frak… Show more

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Cited by 13 publications
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“…16 For disaccharides, it is also notable that initial ؒ OH attack appears to be favoured to some extent at the C 5 position, adjacent to the ring-oxygen, a reaction which provides an extra opportunity for cleavage, via fission of the O-C 1 bond. 16,17 It should also be noted that carboxyl groups (in addition to those present naturally in cellulose) 18 will result from freeradical oxidation of the C 1 -hemiacetal at the "reducing" terminus of a cellulose chain. We believe that these groups will be a locus for further complexation of Fe().…”
Section: Discussionmentioning
confidence: 99%
“…16 For disaccharides, it is also notable that initial ؒ OH attack appears to be favoured to some extent at the C 5 position, adjacent to the ring-oxygen, a reaction which provides an extra opportunity for cleavage, via fission of the O-C 1 bond. 16,17 It should also be noted that carboxyl groups (in addition to those present naturally in cellulose) 18 will result from freeradical oxidation of the C 1 -hemiacetal at the "reducing" terminus of a cellulose chain. We believe that these groups will be a locus for further complexation of Fe().…”
Section: Discussionmentioning
confidence: 99%