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Propenylphenols oxidation

Nakatsubo F, Higuchi T (1975) Synthesis of 1,2-diarylpropane 1,3 diols and determination of their configurations Holzforschung 29 193-198 Ralph J, Ede RM, Robinson NP, Main L (1987) Reactions of /f-aryl lignin model quinone methides with anthrahydroquinone and antranol J Wood Chem Technol 7 133 160 Ralph J, Young RA (1983) Stereochemical aspects of lignin model (S aryl ether quinone methide reactions J Wood Chem Technol 3 161-182 Sarkanen KV, Wallis AFA (1973) Oxidative dimerizations of (E)- and (Z) isoeugenol (2 methoxy-4-propenylphenol) and (E) and (Z)-2,6-dimethoxy-4-propenylphenol JCS Perkin I 1973 1869-1878... [Pg.249]

Tollier M-T, Monties B, Lapierre C, Herve du Penhoat C, Rolando C (1986) Inhomogeneity of angiosperm lignin Comparison of the monomeric composition of lignin fractions isolated from different wood species Holzforschung Suppl 40 75-79 Wallis AFA (1973) Oxidation of (E) and (Z)-2 6-dimethoxy-4-propenylphenol with ferric chloride - a facile route to the 2-aryl ethers of 1-arylpropane 1,2 diols Aust J Chem 26 585-594... [Pg.249]

Methylenedioxy-6-propenylphenol (42) underwent le oxidation followed by radical coupling resulting in the formation of dimeric o-quinone methide 43, which was further converted to carpanone (44) and seven-membered ether 45 in 11 and 44% yields, respectively, as shown in Scheme 8. The former is produced by an intramolecular [4 + 2] cycloaddition . Carpanone has also been synthesized using oxidants such as palladium chloride and molecular oxygen in the presence of Co(II)salen. ... [Pg.1159]

The possibility of converting lignin, a natural polyphenol, to vanillin by Co(NMesalpr) catalyzed oxidation [118] has been demonstrated. A model system suitable for mechanistic studies is the oxidation of isoeugenol (2-methoxy-4-propenylphenol) to vanillin (2-methoxy-4-formylphenol) [119]. The superoxo species derived from... [Pg.240]

The racemate of conocarpin (7.2a), the simplest known member of this small group of neolignans, was again synthesized by oxidative dimerization (with FeCla) of/7-propenylphenol (76). [Pg.41]

These three examples of neolignan chemistry refer to groups of compounds generated, at least formally, by oxidative coupling of propenylphenols plus allyl-phenols (Figs. 7.3.10 and 7.3.11) and of propenylphenols plus propenylphenols (Fig. 7.3.12). [Pg.505]

See other pages where Propenylphenols oxidation is mentioned: [Pg.27]    [Pg.350]    [Pg.197]    [Pg.19]    [Pg.197]    [Pg.19]    [Pg.691]    [Pg.691]    [Pg.693]    [Pg.1207]    [Pg.463]    [Pg.162]    [Pg.15]    [Pg.59]    [Pg.60]    [Pg.62]    [Pg.441]    [Pg.85]    [Pg.85]    [Pg.86]    [Pg.87]   
See also in sourсe #XX -- [ Pg.59 ]



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