Lignin Model Compounds: 4,4'-O-Dimethyldehydrodiacetovanillone and 4,4'-O-Diethyldehydrodiacetovanillone

Autor:	I. M. C. Mendes, M. A. Ferreira, M. G. Drumond, N. G. Fernandes, D. Pilo‐Veloso, M. D. D. Costa
Rok vydání:	1998
Předmět:	Diketone chemistry.chemical_compound Crystallography chemistry IUPAC nomenclature of organic chemistry Atom Lignin Molecule Ether General Medicine Crystal structure General Biochemistry Genetics and Molecular Biology
Zdroj:	Acta Crystallographica Section C Crystal Structure Communications. 54:837-840
ISSN:	0108-2701
DOI:	10.1107/s0108270197018015
Popis:	The title compounds, 5,5′-diacetyl-2,2′,3,3′-tetramethoxy-1,1′-biphenyl, C20H22O6, and 5,5′-diacetyl-2,2′-diethoxy-3,3′-dimethoxy-1,1′-biphenyl, (IUPAC nomenclature), C22H26O6, correspond to the 5,5′-biphenyl-type lignin model compound. They were synthesized from dehydrodiacetovanillone by alquilation with CH3I and C2H5I. In the former compound, all non-H atoms in the asymmetric unit are planar except for one C atom. In the latter compound, there are two molecules of different conformations, one of which is affected by disorder.
Databáze:	OpenAIRE
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