531553-12-5Relevant academic research and scientific papers
Synthesis of Acetone-Derived C6, C9, and C12Carbon Scaffolds for Chemical and Fuel Applications
Moore, Cameron M.,Jenkins, Rhodri W.,Janicke, Michael T.,Kubic, William L.,Polikarpov, Evgueni,Semelsberger, Troy A.,Sutton, Andrew D.
, p. 3382 - 3386 (2016/12/27)
A simple, inexpensive catalyst system (Amberlyst 15 and Ni/SiO2–Al2O3) is described for the upgrading of acetone to a range of chemicals and potential fuels. Stepwise hydrodeoxygenation of the produced ketones can yield branched alcohols, alkenes, and alkanes. An analysis of these products is provided, which demonstrates that this approach can provide a product profile of valuable bioproducts and potential biofuels.
METHOD TO MAKE METHYL ISOBUTYL KETONE AND DIISOBUTYL KETONE
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Page/Page column 7; 1/3, (2008/06/13)
An improved method for the manufacture of MIBK and DIBK from DMK and/or IPA, by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture comprising hydrogen and DMK and/or IPA. The improvement is the use of a reaction pressure greater than 207 kPa (30 psig) to increase the ratio of MIBK to DIBK. In addition a method for the manufacture of MIBK and DIBK by reacting, in the presence of an aldol condensation catalyst, a gaseous mixture consisting essentially of DMK and/or IPA and optionally water.
Copper-catalyzed enantioselective conjugate addition of Grignard reagents to acyclic enones
Lopez, Fernando,Harutyunyan, Syuzanna R.,Minnaard, Adriaan J.,Feringa, Ben L.
, p. 12784 - 12785 (2007/10/03)
A highly enantioselective Cu-catalyzed addition of Grignard reagents to acyclic aliphatic enones is described. In the presence of 5 mol % of CuBr·SMe2 and 6 mol % of JosiPhos diphosphine aliphatic enones react with Grignard reagents to provide β-substituted linear ketones with high yields, regio-, and enantioselectivities. Copyright
Highly enantioselective conjugate addition of AlMe3 to linear aliphatic enones by a designed catalyst
Fraser, Paul K.,Woodward, Simon
, p. 776 - 783 (2007/10/03)
2-Hydroxy-2′-alkylthio-1,1′-binaphthy compounds are catalytic promoters of the 1,4-addition of AlMe3 to linear aliphatic enones in THF at -40 to -48°C in the presence of [Cu(MeCN)4]BF4. At ligand loadings of 5-20 mol%, enantioselectivities of 80-93% are realised for most substrates. To attain these values, the use of highly pure AlMe3 is mandatory. The presence of methylalumoxane (MAO), derived by hydrolysis, leads to reduced enantioselectivity and a conjugate addition product.
Hydroalumination of alkenes by the LiAlH4*3AlBr3 system
Gorobets, E. V.,Shitikova, O. V.,Lomakina, S. I.,Tolstikov, G. A.,Kuchin, A. V.
, p. 1573 - 1578 (2007/10/02)
The hydroalumination of a series of alkenes and some fused aromatic hydrocarbons by the LiAlH4*3AlBr3 system in low-polar solvents was studied.Alkenes with mono-, di-, tri-, and tetraalkyl substituted, mono- and diaryl substituted double bonds and anthracene react at room temperature to give the corresponding dibromoaluminoalkanes in high yields.Benzylidenefluorene, tetraphenylethylene, naphthalene, and phenanthrene do not undergo hydroalumination under these conditions.Camphene, bicyclooct-2-ene, and norbornene afford the corresponding organoaluminum compounds with high stereoselectivity.Oxidation and halo- and acyldemetallation of the resulting alkyl- and arylalanes were carried out.
