3891-98-3Relevant academic research and scientific papers
Alkene Hydrogenations by Soluble Iron Nanocluster Catalysts
Gieshoff, Tim N.,Chakraborty, Uttam,Villa, Matteo,Jacobi von Wangelin, Axel
supporting information, p. 3585 - 3589 (2017/03/21)
The replacement of noble metal technologies and the realization of new reactivities with earth-abundant metals is at the heart of sustainable synthesis. Alkene hydrogenations have so far been most effectively performed by noble metal catalysts. This study reports an iron-catalyzed hydrogenation protocol for tri- and tetra-substituted alkenes of unprecedented activity and scope under mild conditions (1–4 bar H2, 20 °C). Instructive snapshots at the interface of homogeneous and heterogeneous iron catalysis were recorded by the isolation of novel Fe nanocluster architectures that act as catalyst reservoirs and soluble seeds of particle growth.
SELECTIVE PARTIAL HYDROGENATION OF BETA-FARNESENE
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Paragraph 0242, (2016/06/06)
Process for preparing an olefinic product comprising partially hydrogenated β-farnesene in two stages. In the first stage, reaction conditions are controlled to favor the hydrogenation of β-farnesene over auto dimerization and polymerization of β-farnesene. In the second stage, reaction conditions are controlled to favor the hydrogenation of dihydro-β-farnesene and tetrahydro-β-farnesene to form hexahydro-β-hydrofarnesene over the hydrogenation of hexahydro-β-hydrofarnesene to form farnesane.
The formation features of C10–C20 regular petroleum isoprenanes
Gordadze,Giruts,Poshibaeva,Koshelev
, p. 672 - 676 (2016/10/04)
To model the formation processes of C10–C20 petroleum isoprenanes, thermolysis of regular and irregular C20–C40 isoprenanes (phytane, crocetane, squalane, and lycopane) and the suggested precursors of regular pe
Catalytic Production of Branched Small Alkanes from Biohydrocarbons
Oya, Shin-Ichi,Kanno, Daisuke,Watanabe, Hideo,Tamura, Masazumi,Nakagawa, Yoshinao,Tomishige, Keiichi
, p. 2472 - 2475 (2015/08/24)
Squalane, C30 algae-derived branched hydrocarbon, was successfully converted to smaller hydrocarbons without skeletal isomerization and aromatization over ruthenium on ceria (Ru/CeO2). The internal CH2-CH2 bonds located between branches are preferably dissociated to give branched alkanes with very simple distribution as compared with conventional methods using metal-acid bifunctional catalysts.
OLEFINS AND METHODS FOR MAKING THE SAME
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Page/Page column 67-70, (2012/11/06)
Provided herein are olefinic feedstocks derived from conjugated hydrocarbon terpenes (e.g., C10-C30 terpenes), methods for making the same, and methods for their use.
IDENTIFICATION OF MALE-SPECIFIC VOLATILES FROM NEARCTIC AND NEOTROPICAL STINK BUGS (HETEROPTERA: PENTATOMIDAE)
Aldrich, J. R.,Oliver, J. E.,Lusby, W. R.,Kochansky, J. P.,Borges, M.
, p. 1103 - 1112 (2007/10/03)
Males of the Central American stink bug species, Euschistus obscurus, produce an attractant pheromone composed of a blend of compounds characteristic of North American Euschistus spp. and the South American soybean pest, E. heros. The range of E. obscurus extends into the southern United States, the species is easy to rear, and males produce an exceptionally large quantity of pheromone (>0.5 μg/day/male). These factors made E. obscurus useful for characterizing the novel pheromone components of E. heros without importing this pest species into the United States. Euschistus obscurus males produce methyl (2E,4Z)-decadienoate (61 percent) in abundance, which is characteristic of North American species, and methyl 2,6,10-trimethyltridecanoate (27 percent), the main male-specific ester of E. heros. The chirality of Euschistus spp. methyl-branched esters, and field activity of synthetic formulations, remain to be determined. - Keywords: Heteroptera; Pentatomidae; pheromone; attractant; Euschistus; soybean; methyl 2,6,10-trimethyltridecanoate
Microbial Oxidation of Isoprenoid Alkanes, Phytane, Norpristane and Farnesane
Nakajima, Kenji,Sato, Akio,Takahara, Yoshimasa,Iida, Takeo
, p. 1993 - 2002 (2007/10/02)
Rhodococcus sp.BPM 1613, a pristane oxidizing microorganism, grows on isoprenoid hydrocarbons such as phytane (2,6,10,14-tetramethylhexadecane), norpristane (2,6,10-trimethyl-pentadecane) and farnesane (2,6,10-trimethyldodecane) as the sole carbon source, resulting in accumulation of oxidation products in the culture broth.The oxidation products of phytane, norpristane and farnesane in the respective culture broth were isolated and purified by the use of silica gel column chromatography.Their chemical structures were determined by instrumental analyses such as IR, NMR and mass spectrometry.The oxidation products of phytane were identified as 2,6,10,14-tetramethyl-1-hexadecanol and 2,6,10,14-tetramethylhexadecanoic acid, the product of norpristane as 2,6,10-trimethyl-1-pentadecanol, and that of farnesane as 2,6,10-trimethyl-1-dodecanol.All these oxidation products were either monoalcohols or monocarboxylic acids derived through oxidation of the isopropyl terminus of each alkane.In addition, the relationship between the terminal structure of isoprenoid hydrocarbons and microbial oxidation was explored on the basis of these results.
Structures of Homofarnesene and Bishomofarnesene Isomers from Myrmica Ants
Attygalle, Athula B.,Morgan, E. David
, p. 949 - 952 (2007/10/02)
The homofarnesene and bishomofarnesene isomers from Dufour glands of Myrmica ants have been identified by degradation as 7-ethyl-3,11-dimethyldodeca-1,3,6,10-tetraene (2), and 7-ethyl-3,11-dimethyltrideca-1,3,6,10-tetraene (3).
Identification of the Aggregation Pheromone of Flour Beetles Tribolium castaneum and T. confusum (Coleoptera: Tenebrionidae)
Suzuki, Takahisa
, p. 1357 - 1364 (2007/10/02)
The aggregation pheromone produced by the male red flour beetle Tribolium castaneum, and confused flour beetles, T. confusum was identified as 4,8-dimethyldecan-1-al by GLC, GC-MS, PMR spectra, and synthesis of the compound.The synthetic pheromone was less attractive compared with the natural pheromone, because the synthetic sample was composed of four optical isomers.
