6617-49-8Relevant academic research and scientific papers
A new approach for bio-jet fuel generation from palm oil and limonene in the absence of hydrogen
Zhang, Jingjing,Zhao, Chen
supporting information, p. 17249 - 17252 (2015/12/08)
The traditional methodology includes a carbon-chain shortening strategy to produce bio-jet fuel from lipids via a two-stage process with hydrogen. Here, we propose a new solution using a carbon-chain filling strategy to convert C10 terpene and lipids to jet fuel ranged hydrocarbons with aromatic hydrocarbon ingredients in the absence of hydrogen.
The role of germacrene D as a precursor in sesquiterpene biosynthesis: Investigations of acid catalyzed, photochemically and thermally induced rearrangements
Buelow, Nils,Koenig, Wilfried A
, p. 141 - 168 (2007/10/03)
Germacrene D is considered as a precursor of many sesquiterpene hydrocarbons. We have investigated the acid catalyzed as well as the photochemically and thermally induced rearrangement processes of germacrene D isolated from several Solidago species, which contain both enantiomers of germacrene D. Enantiomeric mixtures of sesquiterpenes of the cadinane, eudesmane (selinane), oppositane, axane, isodaucane, and bourbonane group as well as isogermacrene D were identified as main products and made available as reference compounds for structure investigations and stereochemical assignments of plant constituents. δ-Amorphene, one of the rearrangement products, was identified as a natural product for the first time. The absolute configuration of γ-amorphene was revised by correlation with the absolute configuration of germacrene D. The mechanisms of the rearrangement reactions are discussed. (C) 2000 Elsevier Science Ltd.
Synthetic approaches towards trans-calamenene and related molecular modelling studies
Bhonsle, Jayendra B.
, p. 372 - 379 (2007/10/03)
Synthesis of cadalene (12), γ-calacorene (13), epizonarene (9A)-zonarene (9B) and (+/-)-calamenene (4) from epibicycloquiphellandrene (6), which was prepared from 7(S)-isopropyl-10(R)-methyl-1(S)-4-oxobicyclodec-5-ene (5) in quantitative yields, is reported.Molecular modelling studies of all the compounds are also reported.
New Cadinene and Bisabolene Derivatives from the Essential Oil of Pulicaria gnaphalodes
Weyerstahl, Peter,Wahlburg, Hans-Christian,Marschall, Helga,Rustaiyan, Abdolhossein
, p. 1117 - 1124 (2007/10/02)
From the essential oil of Pulicaria gnaphalodes growing near Tehran some new cadinene derivatives were isolated.The structures of 1,8-oxidocadin-4-enes (6, 7, epimers at C-10), 1(10),4-cadinadien-8α-ol (1), 4,10(14)-cadinadien- and 4, 10(14)-muuroldaien-8-ols (2-5) could be verified by their 1H- and 13C-NMR spectra.Furthermore, the 8α-epimer 9 of the known α-copaen-8β-ol (10), (Z)-γ-curcumen-12-ol (13a) and the esters (Z)-13b-e could be identified.Key Words: Pulicaria gnaphalodes / Compositae / 1,8-Oxidocadin-4-ene / Cadinadien-8-ols / α-Copaen-8-ol / γ-Curcumen-12-ol
STABLE CARBOCATIONS FROM TERPENOIDS.IX. MOLECULAR REARRANGEMENTS OF α-MUROLENE AND α-COPAENE WITH THE FORMATION OF TRICYCLIC COMPOUNDS
Polovinka, M. P.,Mamatyuk, V. I.,Korchagina, D. V.,Sal'nikov, G. E.,Gatilov, Yu. V.,et al.
, p. 863 - 882 (2007/10/02)
Tricyclic compounds were obtained from α-murolene and α-copaene in superacidic media, and this agrees with the scheme for the biogenetic transformations of these substances.It was found that the temperature at which the stable cations are generated from α-murolene has an effect on the ratio of the paths leading to the formation of the bi- and tricyclic ions.The prediction of the most probable paths for the transformation of α-copaene agrees with the actually observed transformation of the stable ions generated from this substance.The preferred direction in the ske letal rearrangements of the investigated compounds depends on the nature of the acid medium.
