NOVEL BIS(FORMYLPHENYL)ALKANE AND NOVEL POLYNUCLEAR PHENOL DERIVED FROM THE SAME
申请人:Yoshitomo Akira
公开号:US20100016633A1
公开(公告)日:2010-01-21
Manufacture a novel bis(formylphenyl)alkane according to General Formula (1), as well as a novel polynuclear phenol derived therefrom, by causing a bis(hydroxymethyl-hydroxyphenyl)alkane to react with hexamethylene tetramine in the presence of an acid and hydrolyzing the reaction product, and then using the obtained bis(hydroxy-formylphenyl)alkane as a direct material and causing this material to react with halogenated alkoxycarbonyl hydrocarbon in the presence of a base.
Three phenolic model compounds representing bonding patterns of residual kraft lignin were incubated with manganese peroxidase from Lentinula edodes. Extensive degradation of all the phenolic models, mainly occurring via side-chain benzylic oxidation, was observed. Among the tested model compounds the diphenylmethane alpha-5 phenolic model was found to be the most reactive, yielding several products showing oxidation and fragmentation at the bridging position. The non-phenolic 5-5' biphenyl and 5-5' diphenylmethane models were found unreactive. (C) 2000 Elsevier Science Ltd. All rights reserved.
Methane-bis (vanillin) and derivatives and processes for preparing the same