The products of the zinc chloride-promoted decomposition of cellulose in aqueous phenol at 350°C
1992; Elsevier BV; Volume: 237; Linguagem: Inglês
10.1016/s0008-6215(92)84234-j
ISSN1873-426X
AutoresRobert J. Ferrier, Wayne B. Severn, Richard H. Furneaux, Ian Miller,
Tópico(s)Advanced Cellulose Research Studies
ResumoWhen cellulose was degraded at 350°C for 1 h in aqueous phenol with zinc chloride as catalyst, 10%of the carbon atoms were found in monosaccharide products, 4% in neutral aromatic derivatives (80% xanthene), 34% in the methyl groups of methylated phenols, 14% in the non-aromatic moieties of bis(hydroxyphenyl)methanes and C-methylated derivatives thereof, and 22% in the char. Carbon-containing gasses were also produced, and some of the cellulose carbon atoms appeared in the aromatic rings of the neutral and phenolic products. These observations suggest that formaldehyde was a key intermediate. In pure phenol as the solvent, 10% of the carbon of cellulose was converted into the methylene carbon of xanthene.
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