Trifluoroacetic acid
Cytenamide trifluoroacetic acid solvate
... Cytenamide-trifluoroacetic acid solvate (CYT-TFAA) was produced during an automated parallel crystallization study (Florence, Johnston, Fernandes et ...
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A practical and catalyst free trifluoroethylation reaction of amines using trifluoroacetic acid
... Trifluoroethylation reactions of secondary amines. Trifluoroethylation reactions were performed in tetrahydrofuran (THF), with 1.75 equivalents of trifluoroacetic acid providing optimal results (Fig. 3; For ...
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Enhanced rates of enzymatic saccharification and catalytic synthesis of biofuel substrates in gelatinized cellulose generated by trifluoroacetic acid
... The two physical states of low-temperature swollen and gelatinized cellulose also result in altered degrees of resistance to acid hydrolysis. While 20% of untreated cel- lulose is hydrolyzed by hot 2-M TFA, an ...
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DL Valinium trifluoroacetate
... Fig. 1 illustrates the structure of the asymmetric unit of (I) and the atom-numbering scheme adopted. The valine mol- ecule is in a cationic state, with a protonated amino group and an uncharged carboxylic acid ...
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The Stereodivergent Formation of 2,6-cis and 2,6-trans-Tetrahydropyrans: Experimental and Computational Investigation of the Mechanism of a Thioester Oxy-Michael Cyclization
... and trifluoroacetic acid- mediated conditions gave the ...the trifluoroacetic acid catalysed formation of 2,6-cis- tetrahydropyrans was mediated by a trifluoroacetate-hydroxonium bridge and ...
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2 Amino 4,6 diphenyl 4H 1,3 oxazinium trifluoroacetate
... powerful strategies in current organic synthesis. Consistently, several reported MCRs feature Diels–Alder chemistry with heterodiene (Batey et al., 1999; Tailor & Hall, 2000; Touré et al., 2003; Tietze & ...
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Environmentally evaluated HPLC-ELSD method to monitor enzymatic synthesis of a non-ionic surfactant
... Novozym®435 (immobilised lipase from Candida antarctica of 10,000 Propyl Laurate Units (PLU) per gram), was a gift from Novozymes (Bagsvaerd, Denmark). N-methyl- glucamine (MEG) was purchased from Sigma. HPLC- grade ...
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Cytenamide trifluoroacetic acid solvate
... Cytenamide-trifluoroacetic acid solvate (CYT-TFAA) was produced during an automated parallel crystallization study (Florence, Johnston, Fernandes et ...
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Synthesis and evaluation of dibenzo 18 crown 6 ether containing hydrazone derivative as antibacterial drug derivatives
... In the experimental procedure the reaction was generally run at a molar ratio i.e. in first step formylation of dibenzo- 18- crown-6 by using hexamethylene tetramine and trifluoroacetic acid i.e by duff ...
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2,2,6,6 Tetramethyl 4 oxopiperidinium trifluoroacetate
... Piperdine derivates have found widespread use as bulky bases in organic chemistry. We report here the reaction of 2,2,6,6-tetramethyl-4-piperidone with trifluoroacetic acid and the X-ray crystal structure ...
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Preparation of Carboxymethyl Chitosan Bombyx Mori Nanofibers by Electrospinning Process
... and trifluoroacetic acids were used as solvents in the preparation of polymer ...solvent trifluoroacetic acid with an average diameter of nanofibers of 156–282 nm was obtained by varying the ...
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Solvent Effects on the UV Absorption Spectrum of Carmofur
... gradually disappears (Figure 2). Because of the addition of trifluoroacetic acid, the solvent polarity and dipole increased, resulting in the polarity of the solute increased. It also caused the maximum ...
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Trifluoroacetic Acid-Promoted Friedel-Crafts Aromatic Alkylation with Benzyl Alcohols
... To a stirred solution of distilled trifluoroacetic acid (10 ml) and arene (0.09 mol) under nitrogen at rt was added a mixture of benzyl alcohol (1.00 g, 0.00926 mol) and arene (0.02 mol). The reaction was ...
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Synthesis and Characterization of Some Hot Brand Reactive Dyes and Their Application on Various Fibers
... (a) Synthesis of 4, 4’-azo-bis-acetanilide: p-amino acetanilide (15.0 gm, 0.1 mole) was suspended in water (100 ml) hydrochloric acid (10 ml) was added drop wise to this well stirred suspension. The mixture was ...
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MINIMUM INHIBITORY CONCENTRATION OF SAPONIFIED VIRGIN COCONUT OIL AGAINST STREPTOCOCCUS MUTANS
... The minimal inhibitory concentration (MIC) was determined by a broth microdilution method (CLSI, 2002).Broth dilution is one of the most sensitive and reliable method for the determination of MIC of oily extracts (Panos ...
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Gas Chromatography-Mass Spectrometry Analysis of the Anti-MRSA Fractions of Chromolaena odorata (L.) R.M. King & H. Rob. leaves
... hexanoic acid (caproic acid), dodecanoic acid (lauric acid), decanoic acid (capric acid) and octanoic acid (caprylic ...
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Metabolomics approach reveals annual metabolic variation in roots of Cyathula officinalis Kuan based on gas chromatography–mass spectrum
... d-glyceric acid (detail see Additional file ...pyruvic acid and phos- phoglyceraldehyde, which were used in the biosynthesis pathways of terpenoids ...
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CO-CRYSTALS: A REVIEW
... This is one of the methods for precipitation or recrystalization of the co-crystal former and active pharmaceutical ingredient. Solvents include buffers (pH) and organic solvents. For example preparation of co- crystals ...
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Investigation on Fatty Acid Composition of Oil Extracted from Carica papayaL. Seed
... (Capric acid, Caprilic acid, Lauric acid, Myristic acid, Palmotelic acid, Palmitic acid, Linolic acid, Oleic acid, Stearic acid, Arachidic acid, ...
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Click here to download PDF version of the article !
... palimitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, alpha linoleic acid, arachidic acid, eicosanoic acid, behenic acid, and erucic ...
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