IR 715-2 PDF

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IR Interior of the IR Interior Receiver module: Module The Remote control: Remote PDF Manual: Scanned English · Deutsch. Aug 28, Board index Free Unlimited PDF Downloads Free Downloads. Please, help me to find this muvid ir bedienungsanleitung pdf. I'll be really. On this page you can get: Receiver MUVID IR manual - is available for free download. All information such as file size, preview picture, category manual.


Ir 715-2 Pdf

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The surfactants CMC determinations by fluorometric spectroscopy were performed on a RFPC Shimadzu spectrofluorometer equipped with a W Xe lamp and a cell temperature controller using pyrene as a fluorophore probe. The calculations for CMC were determined from the emission spectra of each surfactant as described before [31].

The corresponding amino acids 2. Upon reaction completion, the final obtained product was diluted with hot ethanol 10 mL and ether 20 mL. A mixture of the corresponding amino acid 2. The precipitate product was vacuum- filtered, washed with ethyl ether and dried under vacuum. White solid; Mp. S Benzyloxy oxopropanaminium methanesulfonate 3i. Molecules , 16 S Ethyloxy oxopropanaminium p-toluenesulfonate 3j. S Octyloxy oxopropanaminium p-toluenesulfonate 3k. S Decyloxy oxopropanaminium methanesulfonate 3l.

S Dodecyloxy oxopropanaminium p-toluenesulfonate 3m. S Tetradecyloxy oxopropanaminium methanesulfonate 3n. Molecules , 16 3- 1H-Indolyl octadecyloxy oxopropanaminium p-toluenesulfonate 3u.

The proposed versatile protocol may be in principle easily extended to a range of other compounds, paving the way to the facile preparation of related relevant organic compounds of industrial important as surfactants and emulsifiers.

Further investigations of these reactions are currently being ongoing in our laboratories. We acknowledge Irina Likhanova for the use of the Monowave microwave reactor from her laboratory. We appreciate the financial support of project D. References 1. Loupy, A. Microwaves in Organic Synthesis, 2nd ed. Larhed, M. Leadbeater, N. Tools for microwave-assisted parallel syntheses and combinatorial chemistry.

Advances in microwave-assisted combinatorial chemistry without polymer- supported reagents.

Kiso, H. Synthesis, Structures and Applications, Guue, B. Paquet, A.

Preparation of some long-chain N-acyl derivatives of essential amino-acids for nutritional studies. Molecules , 16 9. Kawase, T. A novel synthesis of N-alkoxycarbonyl amino acids and surfactant. Properties of their sodium salts. Oleo Sci.

muvid ir 715 bedienungsanleitung pdf

Gorecki, M. Antisickling activity of amino acid benzyl esters. USA , 77, Beltran, J. Use of cationic preservative in food products. Patent B2, Brook, M. A simple procedure for the esterification of carboxylic-acids. Synthesis-Stuttgart , Yang, Q. Microwave-assisted esterification of diverse carboxylic acids and chiral amino acids. Penney, C.

A simple method for the synthesis of long-chain alkyl esters of amino-acids. Arai, I. A simple and convenient method for esterification of tryptophan and other amino-acids. Leyendecker, F. Ligand effects in enantioface differentiating 1,4 addition to 1,3-diphenylpropenone.

Tetrahedron Lett. Gibson, S. Concurrent esterification and N-acetylation of amino acids with orthoesters: A useful reaction with interesting mechanistic implications.

Hassner, A. Synthetic methods. Direct room-temperature esterification of carboxylic-acids. Zhao, H. Microwave-assisted esterification of N-acetyl-L- phenylalanine using modified Mukaiyama's reagents: A new approach involving ionic liquids.

Sureshbabu, V. Microwave irradiation accelerated rapid, efficient and high yield esterification of Boc-amino acid to Merrifield resin mediated by KF. B , 46, Zhang, S. Facile synthesis of N-protected amino acids assisted by microwave irradiation. Vasanthakumar, G. Microwave-assisted facile synthesis of amino acid benzyl ester p-toluenesulfonate and hydrochloride salts. Sathe, M. An efficient method for the esterification of amino acids using silica chloride.

Biondini, D. Esterification of unprotected alpha-amino acids in ionic liquids as the reaction media. Kim, D. Accelerated esterification of free fatty acid using pulsed microwaves. Parallel synthesis of combinatorial libraries can be described as synthetic sequences using an ordered array of spatially separated reaction vessels under the same reaction conditions which generally yield a more or less extensive library of compounds [5]. Parallel synthesis has been reported under both conventional heating conditions and, more recently, under microwave irradiation for combinatorial chemistry [6].

The synthesis of carboxylic esters is one of the most fundamental protocols for producing natural and synthetically useful chemicals in peptide chemistry [7]. Particularly, long alkyloyl amino acids are important compounds due to their nutritional [8] and surfactant properties [9].

Some of them also show antisickling activity [10], protective properties against microorganism growth, as well as in the preservation of perishable food products [11]. Synthetic routes to prepare such compounds are rather limited to date, in spite of the wide applications of amino acid esters.

These methods often rely on the use of the alcohol components in the liquid phase as both solvent and reagent so they are therefore not readily applicable to long chain solid alcohols [12].

Furthermore, most reported protocols to date lack green credentials and either require the presence of strong acids such as HCl or H2SO4 [13,14], hazardous reagents including p-toluenesulfonyl chloride [15], diazomethane [16] or orthoesters [17].

In some other cases, coupling agents e. Many of such protocols also have a limited scope [22]. Comparatively, few heterogeneous catalysts including ionic liquids have been described as efficient systems to prepare short alkyl amino acid esters via esterification of amino acids [23,24] but these approaches have a limited applicability e.

The proposed approach could be efficiently extended to the synthesis of long and short chain alkyl and aryl esters. To the best of our knowledge, this is the first report of a general procedure for the esterification of unprotected amino acids under microwave irradiation, despite other investigations related to the esterification of amino acids under microwave irradiation []. Results and Discussion 2.

Microwave-Assisted Parallel Synthesis of Ionic-Esterified Amino Acids The esterification reaction of carboxylic acids under microwave irradiation has been widely study [], however the esterification of amino acids is comparatively more difficult to that of ordinary carboxylic acids as a consequence of their zwitterionic structure.

Reactions were carried out employing glycine entries 1—8 , D-alanine entries 9—14 and DL-tryptophan entries 15—21, Table 1. Molecules , 16 Table 1. Parallel synthesis of ionic-esterified amino acids under microwave irradiation. Table 1 proves ionic-esterified amino acids ionic liquids analogues could be obtained in one-step by simultaneous esterification of the carboxylic group and protonation of the amine group with subsequent formation of the organic salt end.

The ionic product is more stable than the neutral and consequently inter- and intramolecular reactions could be avoided in our proposed approach. Due to their ionic character, amino acids interact very efficiently with microwave irradiation providing a fast and homogeneous increase in temperature.

Simultaneous cooling with compressed air 5 bar was applied in order to prevent the strong exotherm in the synthesis, avoiding overheating and abrupt temperature overshoot presented when reaction was carried out without air cooling and allows a higher level of irradiation power at the established temperature [28,29].

In these reactions the temperature profiles were obtained simultaneously by both external IR and external FO sensor [30]. Due to the strong microwave absortivity of our ionic products and the delay experience in monitoring temperature on the outer surface of a heavy-walled vessel and especially in Molecules , 16 our experiments with simultaneous cooling, the magnetron output power was controlled by the most precise internal FO sensor IR as slave.

Figure 1. However, it is worth pointing out that the proposed versatile approach can also be extended to the preparation of short chain entries 1, 2 and 10, Table 1 and benzyl entry 9, Table 1 esterified ionic amino acids. Good yields to products could be obtained for all investigated amino acids and alcohols, regardless of their structure and composition, except for products 3k and 3m where ionic product from acid-base reaction without esterification, was curiously the main product.

An additional advantage of these reactions is that a high alcohol excess was not required to obtained high yields to products as compared to most literature reported protocols [,23]. Besides the essential contribution of the hydrophobic interactions, the micellization of ionic surfactants in aqueous Molecules , 16 solutions is influenced considerably by the electrostatic interactions between the ionized head-groups and their interactions with the surrounding counterions and water molecules.

The surfactant CMC determination is indeed done in an aqueous system where the surfactant forms micelles with polar heads oriented toward the aqueous medium. The amphiphilic properties of water soluble long alkyl chain C8—C14 synthesized compounds were determined for measuring the CMCs for compounds 3c—3f obtained from glycine.

CMCs were determined by two methods, using the classical method by interfacial tensiometry and by Steady-state fluorescence measurements [31]. The results are showed in Table 2. Table 2. The carbon chain length of the hydrophobe was found to be a determining factor in the value of CMC, for the prepared series of amino acid esters surfactants, we found that was a marked decline in CMC values with increase the number of carbon atoms in chain length.

The CMC values decreases as hydrophobic group size increases. Similar behavior is typically for other surfactants series, such as alkylpolyglucosydes [32,33] and N-acetylated cationic surfactants [34]. These results point out that these compounds could be employed as emulsifiers for oilfield applications. Experimental 3. General All Aldrich reagents were used without previous purification. Microwave reaction were performed using a commercially available mono-mode microwave, Monowave manufactured by Anton Paar [35], employing a 10 mL Pyrex vial in a closed vessel mode.

Reactions were carried out with simultaneous cooling with compressed air 5 bar and stirring at a fixed rate of rpm. The reaction temperatures were monitored by both, an external infrared sensor IR and by an internal fiber-optic FO temperature probe ruby thermometer protected by a borosilicate immersion well inserted directly in the reaction mixtures.

Pressure sensing is achieved Molecules , 16 by a hydraulic sensor integrated in the swiveling cover of the instrument. The surfactants CMC determinations by fluorometric spectroscopy were performed on a RFPC Shimadzu spectrofluorometer equipped with a W Xe lamp and a cell temperature controller using pyrene as a fluorophore probe. The calculations for CMC were determined from the emission spectra of each surfactant as described before [31].

The corresponding amino acids 2. Upon reaction completion, the final obtained product was diluted with hot ethanol 10 mL and ether 20 mL. A mixture of the corresponding amino acid 2. The precipitate product was vacuum- filtered, washed with ethyl ether and dried under vacuum. White solid; Mp.

S Benzyloxy oxopropanaminium methanesulfonate 3i. Molecules , 16 S Ethyloxy oxopropanaminium p-toluenesulfonate 3j. S Octyloxy oxopropanaminium p-toluenesulfonate 3k. S Decyloxy oxopropanaminium methanesulfonate 3l. S Dodecyloxy oxopropanaminium p-toluenesulfonate 3m. S Tetradecyloxy oxopropanaminium methanesulfonate 3n.

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Molecules , 16 3- 1H-Indolyl octadecyloxy oxopropanaminium p-toluenesulfonate 3u. The proposed versatile protocol may be in principle easily extended to a range of other compounds, paving the way to the facile preparation of related relevant organic compounds of industrial important as surfactants and emulsifiers. Further investigations of these reactions are currently being ongoing in our laboratories. We acknowledge Irina Likhanova for the use of the Monowave microwave reactor from her laboratory.

We appreciate the financial support of project D.

CO SPECTRAL LINE ENERGY DISTRIBUTIONS OF INFRARED-LUMINOUS GALAXIES AND ACTIVE GALACTIC NUCLEI

References 1. Loupy, A. Microwaves in Organic Synthesis, 2nd ed. Larhed, M. Leadbeater, N. Tools for microwave-assisted parallel syntheses and combinatorial chemistry. Advances in microwave-assisted combinatorial chemistry without polymer- supported reagents. Kiso, H. Synthesis, Structures and Applications, Guue, B.

Paquet, A.To the best of our knowledge, this is the first report of a general procedure for the esterification of unprotected amino acids under microwave irradiation, despite other investigations related to the esterification of amino acids under microwave irradiation [].

In these reactions the temperature profiles were obtained simultaneously by both external IR and external FO sensor [30]. Reactions were carried out with simultaneous cooling with compressed air 5 bar and stirring at a fixed rate of rpm.

Yang, Q. Ionic esterified amino acids were synthesized in satisfactory yields in a facile one-pot solventless protocol from unprotected amino acids and alcohols under acid catalysis MsOH or p-TsOH to afford the pure products after a simple work-up procedure.

Kim, D. The precipitate product was vacuum- filtered, washed with ethyl ether and dried under vacuum.

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