14167-59-0Relevant academic research and scientific papers
WAX COMPOSITIONS COMPRISING LINEAR OLEFIN DIMERS OR HODROGENATED VARIANTS THEREOF AND METHODS FOR PRODUCTION THEREOF
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Paragraph 0142-0147; 150, (2021/09/17)
Wax compositions may be obtained by providing an olefinic feed comprising a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, wherein m and n are independently selected integers each ranging from about 12 to about 100, and the olefinic feed optionally comprises one or more internal olefins and/or one or more branched olefins; contacting the olefinic feed with a metal carbene catalyst in a reactor; forming ethylene and a hydrocarbon substance comprising a linear olefin dimer comprising two carbon atoms less than a sum of m and n; removing the ethylene from the reactor while forming the linear olefin dimer; and isolating a wax composition comprising the linear olefin dimer, a hydrogenated reaction product thereof, or any combination thereof.
Efficient heterogeneous dual catalyst systems for alkane metathesis
Huang, Zheng,Rolfe, Eleanor,Carson, Emily C.,Brookhart, Maurice,Goldman, Alan S,El-Khalafy, Sahar H.,Roy MacArthur, Amy H.
experimental part, p. 125 - 135 (2010/06/20)
A fully heterogeneous and highly efficient dual catalyst system for alkane metathesis (AM) has been developed. The system is comprised of an alumina-supported iridium pincer catalyst for alkane dehydrogenation/olefin hydrogenation and a second heterogeneous olefin metathesis catalyst. The iridium catalysts bear basic functional groups on the aromatic backbone of the pincer ligand and are strongly adsorbed on Lewis acid sites on alumina. The heterogeneous systems exhibit higher lifetimes and productivities relative to the corresponding homogeneous systems as catalyst/catalyst interactions and bimolecular decomposition reactions are inhibited. Additionally, using a two-pot device, the supported Ir catalysts and metathesis catalysts can be physically separated and run at different temperatures. This system with isolated catalysts shows very high turnover numbers and is selective for the formation of high molecular weight alkanes.
Long chain (C22-C50) polyunsaturated hydrocarbons, derivatives, synthesis and uses thereof
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Page/Page column 18-19, (2009/09/08)
The present invention is directed to unsaturated or derivatized long chain (C22-C50) polyunsaturated hydrocarbons and a method of preparing the long chain hydrocarbons via electrocoupling of C12-C26 fatty acids. It has been found that soapstock is an inexpensive source of starting materials for the present method. The present invention is also directed to compositions comprising the long chain polyunsaturated hydrocarbons, which can be used as reactive diluents and modifiers in latex, epoxy, alkyd and polymer compositions. In another aspect, the present invention is directed to derivitization or ozonolysis of the long chain polyunsaturated hydrocarbons. The present method is also useful for preparing C12-26 alkyl esters and C12-26 carbon chain compounds containing a terminal olefin.
Electroorganic synthesis 65. Anodic homocoupling of carboxylic acids derived from fatty acids
Weiper-Idelmann, Andreas,Aus Dem Kahmen, Martin,Schaefer, Hans J.,Gockeln, Marianne
, p. 672 - 682 (2007/10/03)
Fatty acid derived carboxylic acids with double bonds, hydroxy-, amino-, keto-, ester- and epoxy groups are anodically coupled to dimers (Kolbe electrolysis) in 29 to 81% yield and up to a 2.5 mol scale. Problems due to the low conductivity of fatty acid salts were overcome by the use of a flow cell with a narrow electrode gap. Fatty acids with branched alkyl chains gave dimers with interesting emulsifying properties. Dimethyl hexadecanedioate, accessible from methyl azelate, could be cyclized and further converted into homomuscone and muscone in a few steps. A commercial mixture of dimeric fatty acids (C36-dicarboxylic acids) has been coupled to give C70-diesters. Acta Chemica Scandinavica 1998. Part 64: Nielsen, M. F., Batanero, B.,.
Synthesis of the Avocado Antifungal, (Z,Z)-2-Hydroxy-4-oxohenicosa-12,15-dien-1-yl Acetate
Bull, Steven D.,Carman, Raymond M.
, p. 1661 - 1672 (2007/10/02)
A synthesis of the avocado antifungal, (Z,Z)-2-hydroxy-4-oxohenicosa-12,15-dien-1-yl acetate (la), confirms the structure of the compound as isolated from both avocado fruit and leaves, and provides the absolute configuration of the natural lipid.
