930-90-5Relevant articles and documents
Electrochemical Coupling of Biomass-Derived Acids: New C8 Platforms for Renewable Polymers and Fuels
Wu, Linglin,Mascal, Mark,Farmer, Thomas J.,Arnaud, Sacha Pérocheau,Wong Chang, Maria-Angelica
, p. 166 - 170 (2017/01/17)
Electrolysis of biomass-derived carbonyl compounds is an alternative to condensation chemistry for supplying products with chain length >C6for biofuels and renewable materials production. Kolbe coupling of biomass-derived levulinic acid is used to obtain 2,7-octanedione, a new platform molecule only two low process-intensity steps removed from raw biomass. Hydrogenation to 2,7-octanediol provides a chiral secondary diol largely unknown to polymer chemistry, whereas intramolecular aldol condensation followed by hydrogenation yields branched cycloalkanes suitable for use as high-octane, cellulosic gasoline. Analogous electrolysis of an itaconic acid-derived methylsuccinic monoester yields a chiral 2,5-dimethyladipic acid diester, another underutilized monomer owing to lack of availability.
Aqueous-phase hydrodeoxygenation of bio-derived phenols to cycloalkanes
Zhao, Chen,He, Jiayue,Lemonidou, Angeliki A.,Li, Xuebing,Lercher, Johannes A.
experimental part, p. 8 - 16 (2011/06/17)
The kinetics of the catalytic hydrodeoxygenation of phenol and substituted phenols has systematically been investigated on the dual-functional catalyst system Pd/C and H3PO4 in order to better understand the elementary steps of the overall reaction. The reaction proceeds via stepwise hydrogenation of the aromatic ring, transformation of the cyclic enol to the corresponding ketone, hydrogenation of the cycloalkanone to the cycloalkanol and its subsequent dehydration as well as the hydrogenation of the formed cycloalkene. The presence of dual catalytic functions is indispensible for the overall hydrodeoxygenation. The dehydration reaction is significantly slower than the hydrogenation reaction and the keto/enol transformation, requiring a significantly larger concentration of Bronsted acid sites compared to the available metal sites for hydrogenation.
EVIDENCE FOR A SINGLE ELECTRON TRANSFER MECHANISM IN REACTIONS OF LITHIUM DIORGANOCUPRATES WITH ORGANIC HALIDES
Ashby, E. C.,DePriest, R. N.,Tuncay, A.,Srivastava, Sushil
, p. 5251 - 5254 (2007/10/02)
It has been demonstrated by means of spectroscopic studies involving cyclizable alkyl halides that lithium dimethylcuprate can react with organic halides by a single electron transfer pathway.
