108266-42-8Relevant articles and documents
Production of liquid hydrocarbon fuels with 3-pentanone and platform molecules derived from lignocellulose
Shen, Tao,Zhu, Chenjie,Tang, Chenglun,Cao, Zhi,Wang, Linfeng,Guo, Kai,Ying, Hanjie
, p. 62974 - 62980 (2016)
Diesel or jet fuel range C10-C17 branched and cyclic alkanes were produced by reaction of 3-pentanone derived from lactic acid with bio-based aldehydes through aldol condensation followed by hydrodeoxygenation. DBU (1,8-diazabicycloundec-7-ene) was identified as an efficient catalyst for the aldol reaction of 3-pentanone with furan based aldehydes, and the selectivity of single or double aldol condensation product could be easily controlled by adjusting the reaction temperature. For the reaction with aromatic aldehydes, aluminium phosphate demonstrated a higher catalytic activity than DBU and mechanisms were proposed for the difference in the catalytic activity. The final hydrodeoxygenation step could be achieved by using a simple Pd/C + H-beta zeolite system, excellent selectivity was observed under the present system, the clean formation of hydrocarbons with a narrow distribution of alkanes occurred in most cases.
Solvent-free synthesis of C9 and C10 branched alkanes with furfural and 3-pentanone from lignocellulose
Chen, Fang,Li, Ning,Li, Shanshan,Yang, Jinfan,Liu, Fei,Wang, Wentao,Wang, Aiqin,Cong, Yu,Wang, Xiaodong,Zhang, Tao
, p. 229 - 232 (2015)
Jet fuel range branched alkanes were first synthesized under solvent-free conditions by the aldol condensation of furfural and 3-pentanone from lignocellulose followed by the one-step hydrodeoxygenation (HDO). Among the investigated solid base catalysts,
New zeolite Al-COE-4: Reaching highly shape-selective catalytic performance through interlayer expansion
Yilmaz, Bilge,Müller, Ulrich,Feyen, Mathias,Zhang, Haiyan,Xiao, Feng-Shou,De Baerdemaeker, Trees,Tijsebaert, Bart,Jacobs, Pierre,De Vos, Dirk,Zhang, Weiping,Bao, Xinhe,Imai, Hiroyuki,Tatsumi, Takashi,Gies, Hermann
, p. 11549 - 11551 (2012)
A ferrierite-type layered aluminosilicate, Al-RUB-36, was prepared for the first time and its interlayer expansion resulted in new zeolite catalysts denoted Al-COE-3 and Al-COE-4. Decane hydroconversion tests demonstrated the highly active and shape-selective nature of the new Al-COE-4 catalyst with an unprecedented isomerization yield, highlighting the potential of this material as a hydroisomerization catalyst. This is the first report on achieving shape-selectivity via interlayer expansion. The Royal Society of Chemistry 2012.
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Calingaert,Soroos
, p. 636 (1936)
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Selective dimerisation of α-olefins using tungsten-based initiators
Hanton, Martin J.,Daubney, Louisa,Lebl, Tomas,Polas, Stacey,Smith, David M.,Willemse, Alex
, p. 7025 - 7037 (2010)
The selective dimerisation of the α-olefins 1-pentene through to 1-nonene is reported using an in situ-generated catalyst derived from tungsten hexachloride, aniline, triethylamine and alkylaluminium halide. The influence of reagent identity and reaction stoichiometry, along with activator, solvent and α-olefin substrate choice are probed. The catalyst is found to be highly selective towards dimerisation, minimising the formation of undesired heavier oligomers. Notably, the selectivity within the dimer fraction is found to favour the formation of products with methyl branches. The selectivity towards individual olefin isomers has been determined and the system is found to also produce trace levels of dienes and alkanes. A kinetic study of the system reveals a second order dependence on substrate. Comparison of the products observed, with those expected for metallacyclic and Cossee-type mechanisms, suggests that the latter is in operation, something confirmed by the results of a C2H4/C2D4 co-dimerisation experiment which showed full isotopic scrambling in the products. Thus a mechanistic proposal is made to account for the observed behaviour of the system, including the diene and alkane formation. The Royal Society of Chemistry 2010.
High-performance ring-opening catalysts based on iridium-containing zeolite Beta in the hydroconversion of decalin
Santi, Dominic,Holl, Tobias,Calemma, Vincenzo,Weitkamp, Jens
, p. 46 - 57 (2013)
Decalin was converted in a flow-type reactor under a hydrogen pressure of 5.2 MPa on Ir/H,A-Beta zeolite catalysts, where A stands for an alkali metal cation. In one series of catalysts, the Ir content was 3 wt.%, and the nature of A was varied from lithi
