bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hepatoprotective effect of oleuropein in mice: Mechanisms uncovered by gene expression profiling
Authors: Kim Yunjung , Choi Youngshim , Park Taesun 
Published: September 2010

AbstractOleuropein, an active constituent of olive leaf, has a variety of pharmacological activities associated with its capacity to scavenge reactive oxygen species. Oleuropein is also reported to have protective effects against non‐alcoholic fatty liver disease (NAFLD) in vivo. In this study, gene expression profiling of hepatic tissues was examined, and transcription factors (TFs) with target genes that were modulated by oleuropein were identified to gain insights into the molecular mechanisms for the hepatoprotective action of this compound. C57BL/6N mice were fed either a high‐fat diet (HFD) or 0.03% oleuropein‐supplemented HFD for 10 weeks, after which their livers were subjected to oligo DNA microarray analysis. The oleuropein with which the HFD was supplemented reduced the hepatic mRNA level of the genes that encoded the key regulators of the hepatic fatty acid uptake and transport. In addition, the oleuropein reduced the expression of a number of hepatic genes involved in the oxidative stress responses and detoxification of lipid peroxidation products and proinflammatory cytokine genes. The (putative) candidate TFs that bound to the promoters of the genes regulated at least threefold (both up and down) by oleuropein were implicated in the lipogenesis, inflammation, insulin resistance, fibrosis, and cell proliferation and differentiation, which implies that the mechanisms that underlie the beneficial effects of oleuropein on NAFLD may be multifactorial.
Large scale purification of linear plasmid DNA for efficient high throughput cloning
Authors: Noirclerc‐Savoye Marjolaine , Gallet Benoit , Bernaudat Florent , Vernet Thierry 
Published: September 2010

AbstractIn this report we describe a rapid, simple, and efficient method for large‐scale purification of linear plasmid DNA to answer demand from high‐throughput gene cloning. The process is based on the separation of the linear vector from small DNA fragments by anion exchange chromatography. Gene cloning experiments by restriction/ligation or the In‐Fusion(tm) technique confirmed the high quality of the linearized vector as 100% of the genes were successfully cloned.
Photochemical Studies in Flash Photolysis IV. Intensity and Wavelength Effects
Authors: Shilman A. , Marcus R. A. 
Published: September 2010

AbstractWavelength and intensity effects which we have observed in the flash photolysis of acetone are reviewed. Marked nonmonotonic wavelength effects occurred in the different regions investigated (260, 280 and 300 mμ) and serve to emphasize the problem of interpreting any data obtained with unfiltered light. The data at 300 mμ were compared with those obtained with continuous light sources 106 fold less intense. A considerable difference occurred in the C2H6/CO ratio. To investigate this intensity effect, flash photolyses were made over a wide range of reduced intensities, as low as 104 fold less than the maximum one, and the transition intensity region for change in C2H6/CO ratio and CO quantum yield was located. This phenomenon illustrates the more general fact that the apparent primary processes observed at typical flash intensities need not be the same as the primary processes found at low intensities.
Photochemical Processes in the Ionosphere Induced by Solar Proton Bombardment
Authors: Herzberg Luise 
Published: September 2010

AbstractCertain ionospheric disturbances produced mainly by solar protons show characteristic diurnal variations which indicate that photochemical processes play a role in these events. For the interpretation of the observed effects, several mechanisms, involving various negative ions as well as nitric oxide, have been suggested. These mechanisms and their limitations will be discussed.
Primary Processes in the Photochemical Decomposition of Nitroalkanes
Authors: Rebbert R. E. , Slagg N. 
Published: September 2010

AbstractNitromethane and nitroethane have been photolyzed in the liquid and gaseous phases in order to distinguish the various possible primary processes occurring for each compound.In the case of nitromethane, a free radical split has been postulated to account for the products as

For nitroethane, there are at least two primary processes occurring, namely

Various secondary reactions are discussed for both compounds.
The Three Body Recombination of Chlorine Atoms
Authors: Chiltz G. , Eckling R. , Goldfinger P. , Huynrechts G. , Martens G. , Simoens G. 
Published: September 2010

AbstractLa constante cinétique de recombinaison des atomes de chlore avec des molécules Cl2 comme troisième corps a été mesurée en étudiant l'addition du chlore à l'oxyde de carbone dans un intervalle de température compris entre 500 et 600°K. Les valeurs trouvées pour log krec sont 9.9 ± 0.5, 9.85±0.5, 9.70±0.5 en I2 mǒle–2 sec–1 respectivement à 502.4, 552.3 et 598.9°K. L'efficacité du tétrachlorure de carbone comme troisième corps est environ 6.5 fois plus grande que celle de Cl2, alors que SF6 et A n'ont pas d'efficacité mesurable avec cette méthode dont la sensibilité est limitée.
The Competitive Chlorination of Propane and Olefins
Authors: Hagopian A. K. E. , Knox J. H. , Thompson E. A. 
Published: September 2010

AbstractBy chlorinating mixtures of propane and olefins (ethylene, propene and isobutene) we have shown that there is a strong heterogeneous component in the chlorination of the olefins. The heterogeneous reaction can be somewhat reduced by choosing a suitable reaction vessel surface but cannot be completely eliminated. However in favourable cases it can be allowed for and the ratios of the rate constants for chlorine atom attack on propane and olefins can be determined. The absolute rate constants for addition of chlorine atoms to olefins can then be derived using the known value of the rate constant for Cl + C3H8 = C3H7 + HCl.
Réactions Photochimiques D'Oxydo‐Réduction de Composés de Coordination et Influence des Alcools
Authors: Balzani V. , Bertoluzza A. , Carassiti V. 
Published: September 2010

AbstractNous avons étudié la photoréduction des octacyanures complexes de Mo et de W du type M(CN)38 en solution aqueuse. Le rendement quantique de ces réactions est plus grand que l'unité dans toutes les conditions expérimentales utilisées. Ceci a été interprété par un mécanisme en chaîne comprenant la réaction de molécules photoexcitées avec le solvant et la formation de radicaux OH.Nous avons également étudié, de façon systématique et quantitative, la photoréduction de Mo (CN)38 et W(CN)38 à 3650 Å dans des milieux hydroalcooliques (alcool méthylique, éthylique, isopropylique) de concentrations différentes. La présence de l'alcool conduit dans chaque cas à une diminution de rendement quantique dont la valeur demeure cependant plus grande que l'unité (4,4–3, 2 pour Mo (CN)38; ‐ 1,6 ‐ 1,3 pour W(CN)38).D'autre part l'alcool augmente fortement la vitesse de la photoréduction de Ag(dipyridyle)2+2, que nous avons examinée à 3650 et à 4047 A.Dans le cas des octacyanures l'action de l'alcool consiste en un ralentissement des réactions secondaires qui suivent la réaction primaire, et sa nature est fondamentalement physique; dans l'autre cas (Ag(II)) il s'agit d'une action chimique sur la structure du complexe et l'on superpose une réaction de réduction thermique très rapide à la réaction photochimique.On peut discuter un mécanisme de cette action de structure, la nature de la liaison Ag‐dipyridyle et l'interaction complexe‐alcool en termes d'orbitales de symétrie.
Sur le Nombre de Centres de Sensibilité des Cristaux Tabulaires au Bromure D'Argent Soumis a des Irradiations Plus ou Moins Importantes
Authors: Danguy G. 
Published: September 2010

AbstractDes microcristaux tabulaires peuvent être obtenus par une maturation physique suffisamment longue d'une émulsion au bromure d'argent non ammoniacal. On a examiné, entre autres choses, le nombre et la répartition des centres de sensibilité créés par l'action de la lumière sur de tels cristaux.Pour des microcristaux de 40 à 50 μ de dimension moyenne, le nombre des centres de sensibilité varie très largement avec l'importance de l'exposition lumineuse. Pour une exposition très faible, il existe, par grain, 1 ou 2 centres de sensibilité situés indifféremment à l'intérieur, en bordure ou en un sommet du grain; à partir de ces centres, le développement se propage dans tout le volume du grain, suivant des lignes radiales en nombre considérable mais limité, avec une vitesse pratiquement indépendante de la direction.Une exposition importante crée dans le cristal un très grand nombre de centres de sensibilité, répartis aléatoirement dans tout le volume; contrairement au cas précédent, la développabilité de ces centres est peu importante. Les grains d'image développée situés en bordure du microcristal sont plus difficilement oxydables que ceux correspondant au volume intérieur. Les arêtes des grains se montrent de même le lieu préférentiel d'apparition de l'argent photolytique.
Simple Conjugated Polymers with On‐Chain Phosphorescent Iridium(III) Complexes: Toward Ratiometric Chemodosimeters for Detecting Trace Amounts of Mercury(II)
Authors: Shi Hui‐Fang , Liu Shu‐Juan , Sun Hui‐Bin , Xu Wen‐Juan , An Zhong‐Fu , Chen Jian , Sun Shi , Lu Xiao‐Mei , Zhao Qiang , Huang Wei 
Published: September 2010

AbstractFor the development of excellent optical probes for mercury(II), a series of simple conjugated polymers that contain phosphorescent iridium(III) complexes as receptors for mercury(II) were designed and synthesized. These conjugated polymers showed energy transfer from the polymer host to iridium(III) complex guest in both solution and the solid state. Unexpectedly, they can work as excellent polymer chemodosimeters for mercury(II) by utilizing the mercury(II)‐induced decomposition of iridium(III) complex. They exhibit a pronounced optical signal change with switchable phosphorescence and fluorescence, even when the concentration of a solution of mercury(II) in THF was as low as 0.5 ppb. With the addition of mercury(II), the phosphorescent emission intensity of iridium(III) complexes was quenched completely. As the emission from polymer backbones increased, the emission wavelength was redshifted simultaneously, thereby realizing ratiometric detection. Excellent selectivity toward mercury(II) over other potentially interfering cations was also realized. In addition, an obvious emission color change of polymer solution from red to yellow‐green was observed, thus realizing a “naked‐eye” detection of mercury(II). More importantly, the solid films of these polymer chemodosimeters also exhibited high sensitivity and rapid response to mercury(II), thereby demonstrating the possibility of the fabrication of sensing devices with fast and convenient detection of mercury(II). The sensing mechanism was also investigated in detail. This is the first report on chemodosimeters based on conjugated polymers with phosphorescent iridium(III) complexes.
Electrochemical Synthesis and Characterisation of Alternating Tripyridyl–Dipyrrole Molecular Strands with Multiple Nitrogen‐Based Donor–Acceptor Binding Sites
Authors: Tabatchnik‐Rebillon Alexandra , Aubé Christophe , Bakkali Hicham , Delaunay Thierry , Manh Gabriel Thia , Blot Virginie , Thobie‐Gautier Christine , Renault Eric , Soulard Marine , Planchat Aurélien , Le Questel Jean‐Yves , Le Guével Rémy , Guguen‐Guillouzo Christiane , Kauffmann Brice , Ferrand Yann , Huc Ivan , Urgin Karène , Condon Sylvie , Léonel Eric , Evain Michel , Lebreton Jacques , Jacquemin Denis , Pipelier Muriel , Dubreuil Didier 
Published: September 2010

AbstractSynthesis of alternating pyridine–pyrrole molecular strands composed of two electron‐rich pyrrole units (donors) sandwiched between three pyridinic cores (acceptors) is described. The envisioned strategy was a smooth electrosynthesis process involving ring contraction of corresponding tripyridyl–dipyridazine precursors. 2,6‐Bis[6‐(pyridazin‐3‐yl)]pyridine ligands 2 a–c bearing pyridine residues at the terminal positions were prepared in suitable quantities by a Negishi metal cross‐coupling procedure. The yields of heterocyclic coupling between 2‐pyridyl zinc bromide reagents 12 a–c and 2,6‐bis(6‐trifluoromethanesulfonylpyridazin‐3‐yl)pyridine increased from 68 to 95 % following introduction of electron‐donating methyl groups on the metallated halogenopyridine units. Favorable conditions for preparative electrochemical reduction of tripyridyl–dipyridazines 2 b,c were established in THF/acetate buffer (pH 4.6)/acetonitrile to give the targeted 2,6‐bis[5‐(pyridin‐2‐yl)pyrrol‐2‐yl]pyridines 1 b and 1 c in good yields. The absorption behavior of the donor–acceptor tripyridyl–dipyrrole ligands was evaluated and compared to theoretical calculations. Highly fluorescent properties of these chromophores were found (νem≈2×104 cm−1 in MeOH and CH2Cl2), and both pyrrolic ligands exhibit a remarkable quantum yield in CH2Cl2 (ϕf=0.10). Structural studies in the solid state established the preferred cis conformation of the dipyrrolic ligands, which adopting a planar arrangement with an embedded molecule of water having a complexation energy exceeding 10 kcal mol−1. The ability of the tripyridyl–dipyrrole to complex two copper(II) ions in a pentacoordinate square was investigated.
Controlled Dispersion and Purification of Protein–Carbon Nanotube Conjugates Using Guanidine Hydrochloride
Authors: Hirano Atsushi , Maeda Yutaka , Yuan Xiaofei , Ueki Ryuuichi , Miyazawa Yosuke , Fujita Jun‐ichi , Akasaka Takeshi , Shiraki Kentaro 
Published: September 2010

AbstractFor the development of biofunctional carbon nanotubes for biosensors, drug carriers, and nanobiocatalysts, their aggregation and biofouling in aqueous solutions are crucial problems because this behavior leads to a reduction of their excellent optical and electrical properties and nanoscale size effects. This paper presents a new method for enhancing the dispersibility of protein–carbon nanotube conjugates and for exfoliating the protein from the carbon nanotube sidewalls through controlling the concentration of guanidine hydrochloride (Gdn⋅HCl) in the solution. In medium concentrations (2–3 M) of Gdn⋅HCl, the dispersibility of protein–carbon nanotube conjugates was found to be substantially increased without denaturation or aggregation of the proteins. At higher concentrations (>6 M) of Gdn⋅HCl, pristine carbon nanotubes were precipitated instantly as a result of dissociation of the protein. These phenomena indicate that Gdn⋅HCl functions not only as a dispersion adjuvant for biofunctional protein–carbon nanotube conjugates, but also as a cleaning agent for the purification of biofouled carbon nanotubes. The dissociation concentrations of Gdn⋅HCl were higher than the midpoint of protein denaturation, suggesting that protein adsorption on carbon nanotubes is more stable than protein folding toward Gdn⋅HCl.
A Versatile Iron‐Catalyzed Protocol for the One‐Pot Synthesis of Isoxazoles or Isoxazolines from the Same Propargylic Alcohols
Authors: Debleds Olivier , Gayon Eric , Ostaszuk Emilie , Vrancken Emmanuel , Campagne Jean‐Marc 
Published: September 2010

AbstractThe use N‐sulfonyl‐protected hydroxylamines as bi‐nucleophiles in iron‐catalyzed propargylic substitutions allows the selective one‐pot synthesis of four classes of substituted isoxazoles or isoxazolines from the same propargylic alcohols (21 examples) by simply tuning the nature of the base. By using an iron(III) catalyst and a base such as triethylamine (3 equiv), isoxazoles 3 are obtained in good isolated yields (56–95%), whereas N‐sulfonyl‐protected isoxazolines 6 are selectively obtained (77–93% yield) by using iron and gold catalysts in the presence of a catalytic amount of pyridine (10 mol%).
ChemInform Abstract: Crystal Structure of the Phases Hg5CIII2X8 (CIII: Ga, In; X: Se, Te).
Authors: Kozer V. R. , Fedorchuk A. O. , Olekseyuk I. D. , Parasyuk O. V. 
Published: September 2010

AbstractThe crystal structure of Hg5Ga2Se8, Hg5In2Se8, Hg5Ga2Te8, and Hg5In2Te8 is determined by powder XRD of alloys annealed at 500 K for 500 h.
ChemInform Abstract: Synthesis, Structure, Magnetic, Optical and Moessbauer Properties of Na2FeSn(PO4)3.
Authors: El Bouari A. , El Jazouli A. , Benmokhtar S. , Gravereau P. , Wattiaux A. 
Published: September 2010

AbstractThe title compound is prepared by solid state reaction of a stoichiometric mixture of Na2CO3, (NH4)2HPO4, Fe2O3, and SnO2 (200, 600, and 950 °C, 48 h) and characterized by powder XRD, UV/VIS diffuse reflectance spectroscopy, magnetic measurements, and Moessbauer spectroscopy.
ChemInform Abstract: Phenakite‐Type BeP2N4 — A Possible Precursor for a New Hard Spinel‐Type Material.
Authors: Pucher Florian J. , Roemer S. Rebecca , Karau Friedrich W. , Schnick Wolfgang 
Published: September 2010

AbstractBeP2N4 is synthesized from Be3N2 and P3N5 (multi‐anvil apparatus, 1500 °C, 5 GPa).
ChemInform Abstract: Stable Oxoborate with Edge‐Sharing BO4 Tetrahedra Synthesized under Ambient Pressure.
Authors: Jin Shifeng , Cai Gemei , Wang Wanyan , He Meng , Wang Shunchong , Chen Xiaolong 
Published: September 2010

AbstractKZnB3O6 is synthesized under ambient pressure from a stoichiometric mixture of K2CO3, ZnO, and H3BO3 (500 °C for 12 h and annealing at 750 °C for 24 h).
ChemInform Abstract: Na5GaGe2: A New Intermetallic Compound with an Isolated Linear Anion of GaGe25‐.
Authors: Park Dong Gon , DiSalvo Francis J. 
Published: September 2010

AbstractSingle crystals of the title compound are prepared in molten Na from mixtures of NaN3, Na, Sr, Ge, Ga, and Li (Na:Sr:Ge:Ga:Li = 13:0.5:1:1:0.5; 760 °C, 48 h) Na5GaGe2 crystallizes in the monoclinic space group P21/m with Z = 2.
ChemInform Abstract: Desymmetrization of meso‐1,2‐Diols via the Dynamic Kinetic Resolution of Its Monodichloroacetates.
Authors: Cao Jin‐Li , Qu Jin 
Published: September 2010

AbstractEsterification of the monodichloroacetates (I) in the presence of the amino ester (HIS) allows an efficient access to enantiomerically enriched 1,2‐diesters which can be deprotected selectively without significant racemization.
ChemInform Abstract: Aminolytic Kinetic Resolution of trans Epoxides for the Simultaneous Production of Chiral trans β‐Amino Alcohols in the Presence of Chiral Cr(III) Salen Complex Using an Ionic Liquid as a Green Reaction Media.
Authors: Kureshy Rukhsana I. , Kumar Manish , Agrawal Santosh , Khan Noor‐ul H. , Abdi Sayed H. R. , Bajaj Hari C. 
Published: September 2010

AbstractThe title aminolytic kinetic resolution provides access towards β‐amino alcohols (III), (V) and (VII) in up to < 99% e.e.
ChemInform Abstract: Highly Enantioselective Michael Addition of Malonates to β,γ‐Unsaturated α‐Ketoesters Catalyzed by Chiral N,N′‐Dioxide‐Yttrium(III) Complexes with Convenient Procedure.
Authors: Zhou Lin , Lin Lili , Wang Wentao , Ji Jie , Liu Xiaohua , Feng Xiaoming 
Published: September 2010

AbstractThe procedure described is easily scaled‐up to gram scales, affords the corresponding products in excellent yields and enantiomeric excess and is not affected by atmospheric oxygen and moisture.
ChemInform Abstract: Metal‐Free Oxidation of Urazole and 1,4‐Dihydropyridine Derivatives under Mild and Heterogeneous Conditions by Nitro Urea, Derived from Urea Nitrate, and Silica Sulfuric Acid.
Authors: Ghorbani‐Choghamarani Arash , Zolfigol Mohammad A. , Hajjami Maryam , Rastgoo Shahrbanoo , Mallakpour Shadpour 
Published: September 2010

AbstractAdvantages of the title procedure are the non‐toxic and mild conditions and the easy and clean work‐up of the products.
ChemInform Abstract: Catalytic Hypervalent Iodine Oxidation of Alcohols to the Corresponding Carbonyl Compounds Using N‐Hydroxyphthalimide (NHPI) and m‐Chloroperbenzoic Acid.
Authors: Zhu Chenjie , Ji Lei , Zhang Qian , Wei Yunyang 
Published: September 2010

AbstractA novel and mild catalytic oxidation of alcohols to corresponding carbonyl compounds is developed.
ChemInform Abstract: Aminodifluorosulfinium Salts: Selective Fluorination Reagents with Enhanced Thermal Stability and Ease of Handling.
Authors: L'Heureux Alexandre , Beaulieu Francis , Bennett Christopher , Bill David R. , Clayton Simon , LaFlamme Francois , Mirmehrabi Mahmoud , Tadayon Sam , Tovell David , Couturier Michel 
Published: September 2010

AbstractThe title salts are more stable and more easily handled than DAST and Deoxo‐Fluor and can be prepared in a safer and more cost‐effective manner.
ChemInform Abstract: Copper‐Catalyzed Direct Amination of ortho‐Functionalized Haloarenes with Sodium Azides as the Amino Source.
Authors: Zhao Haibo , Fu Hua , Qiao Renzhong 
Published: September 2010

AbstractThe method provides a mild and convenient approach to 2‐aminobenzoic acids, 2‐aminobenzamides, and N‐(2‐aminophenyl)amides which can smoothly be converted into benzoxazinones, quinazolinones, and benzimidazoles.
ChemInform Abstract: Morita—Baylis—Hillman Reaction of Lactams and Lactones with Alkyl Halides and Epoxides Catalyzed by Hydroxysulfides.
Authors: Suarez del Villar Irene , Gradillas Ana , Dominguez Gema , Perez‐Castells Javier 
Published: September 2010

AbstractMorita—Baylis—Hillman reaction of lactam (I) and lactones (VI) with a variety of alkyl halides (II) and epoxides (IV) proceeds smoothly in the presence of a chiral hydroxy sulfide under basic conditions.
ChemInform Abstract: Unusual Carbon—Carbon Bond Formations Between Allylboronates and Acetals or Ketals Catalyzed by a Peculiar Indium(I) Lewis Acid.
Authors: Schneider Uwe , Dao Hai T. , Kobayashi Shu 
Published: September 2010

AbstractThe use of indium(I) triflate represents the first main group metal‐catalyzed activation of allylboronates for the allylation of the title noncarbonyls.
ChemInform Abstract: Synthesis of N‐Acyl‐5‐aminopenta‐2,4‐dienals via Base‐Induced Ring‐Opening of N‐Acylated Furfurylamines: Scope and Limitations.
Authors: Ouairy Cecile , Michel Patrick , Delpech Bernard , Crich David , Marazano Christian 
Published: September 2010

AbstractSteric and electronic effects have strong influence on the success.
ChemInform Abstract: High‐Pressure Diels—Alder Cycloadditions Between Benzylideneacetones and 1,3‐Butadienes: Application to the Synthesis of (R,R)‐(—)‐ and (S,S)‐(+)‐Δ8‐Tetrahydrocannabinol.
Authors: Ballerini Eleonora , Minuti Lucio , Piermatti Oriana 
Published: September 2010

AbstractLewis acid catalyzed addition of butadienes to benzylideneacetones at high pressure allows an efficient access to arylated cyclohexenes.
ChemInform Abstract: Efficient Double Bond Migration of Allylbenzenes Catalyzed by Pd(OAc)2—HFIP System with Unique Substituent Effect.
Authors: Nishiwaki Nagatoshi , Kamimura Ryuichiro , Shono Kimihiro , Kawakami Toshihiko , Nakayama Katsuhisa , Nishino Kohei , Nakayama Takayuki , Takahashi Keisuke , Nakamura Aki , Hosokawa Takahiro 
Published: September 2010

AbstractThe system promotes the double bond isomerization under mild conditions and generally within a short time to give the (E) isomers nearly exclusively.
ChemInform Abstract: Synthesis of Amino‐Functionalized Sulfonimidamides and Their Application in the Enantioselective Henry Reaction.
Authors: Steurer Marianne , Bolm Carsten 
Published: September 2010

AbstractThe catalysts, generated from CuCl and SIM or ESI, promote the addition of nitromethane to aromatic aldehydes yielding (R)‐ and (S)‐nitro alcohols with high enantioselectivity.
ChemInform Abstract: DMAP‐Catalyzed Cyanation of Aldehydes and Ketones with Ethyl Cyanoformate.
Authors: Aoki Shohei , Kotani Shunsuke , Sugiura Masaharu , Nakajima Makoto 
Published: September 2010

AbstractIt is successfully demonstrated that DMAP serves a nucleophilic catalyst for the cyanation of aldehydes and ketones.
ChemInform Abstract: Chemoselective Hydrolysis of Ester Bonds in the Presence of Baker′s Yeast.
Authors: Bialecka‐Florjanczyk Ewa , Majewska Ewa 
Published: September 2010

AbstractIn the presence of baker′s yeast, only hydrolysis of aliphatic esters of phenols or aliphatic alcohols is possible.