Direct production of naphthenes and paraffins from lignin
作者:Jiechen Kong、Mingyuan He、Johannes A. Lercher、Chen Zhao
DOI:10.1039/c5cc06828b
日期:——
Utilization of lignin as a fuel precursor attracts attention, and a novel and facile process is developed for one-pot conversion of lignin to cycloalkanes and alkanes with Ni catalysts at...
Boron trichloride as a selective demethylating agent for hindered ethers
作者:Christopher F. Carvalho、Melvyn V. Sargent
DOI:10.1039/c39840000227
日期:——
Borontrichloride has been found to be an efficient reagent for the selective cleavage of sterically hindered methoxy groups in methoxyarenes; the scope and utility of this reaction are explored.
已发现三氯化硼是一种有效裂解甲氧基芳烃中位阻甲氧基的有效试剂。探索了该反应的范围和效用。
CONTINUOUS PROCESS FOR CONVERSION OF LIGNIN TO USEFUL COMPOUNDS
申请人:Chemtex Italia, S.p.A.
公开号:US20130224816A1
公开(公告)日:2013-08-29
This specification discloses an operational continuous process to convert lignin as found in ligno-cellulosic biomass before or after converting at least some of the carbohydrates. The continuous process has been demonstrated to create a slurry comprised of lignin, raise the slurry comprised of lignin to ultra-high pressure, deoxygenate the lignin in a lignin conversion reactor over a catalyst which is not a fixed bed without producing char. The conversion products of the carbohydrates or lignin can be further processed into polyester intermediates for use in polyester preforms and bottles.
The present invention concerns functionalized photoreactive compounds of formula (I), that are particularly useful in materials for the alignment of liquid crystals. Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.
[EN] PHOTOOXIDATION OF PHENOLIC COMPOUNDS<br/>[FR] PHOTO-OXYDATION DE COMPOSÉS PHÉNOLIQUES
申请人:DSM IP ASSETS BV
公开号:WO2021234080A1
公开(公告)日:2021-11-25
The present invention relates to the photooxidation of phenolic compounds to the respective quinoid compounds using methylene blue as photosensitizer in a solvent mixture of water and alcohols using light of the high wavelength range of the visible spectrum.