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6,705 Newest Publications about the topic esters

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Diastereoselective synthesis of chloro‐ and fluoro‐aniline containing phosphonate esters in a three‐component condensation

01-Jan-2010 | Maghsoodlou, Malek Taher; Hazeri, Nourallah; Habibi‐Khorassani, Sayyed Mostafa; Marandi, Ghasem; Saghatforous ..., Heteroatom Chemistry, 2010

New phosphonate ester derivatives were obtained by in situ stereo-specific reaction between triphenyl phosphite and dialkyl acetylenedicarboxylates in the presence of a series of halogenated anilines. Spectroscopic data and X-ray crystallography analysis are in agreement with the gauche ...

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Synthesis of new functionalized aminomethylphosphonites and their derivatives

01-Jan-2010 | Prishchenko, Andrey A.; Livantsov, Mikhail V.; Novikova, Olga P.; Livantsova, Ludmila I.; Petrosyan, Valery S., Heteroatom Chemistry, 2010

Abstract The aminomethylation of the several esters of hypophosphorous acid using chloro‐, alkoxy‐, and amino‐substituted methylamines of various structure is proposed as convenient method for the synthesis of new functionalized aminomethylphosphonites and bis(aminomethyl)phosphinates. Also ...

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Organotin(IV) complexes of 4,5-dimethoxy-2-nitrobenzoic acid: Synthesis, characterization, and biological activity

21-Dec-2009 | F. A. Shah, S. Shahzadi, S. Ali, K. C. Molloy, S. Ahmad, Russian Journal of Coordination Chemistry, 2009

A new series of organotin esters has been derived from the condensation of organotin oxides/halides with 4,5-dimethoxy-2-nitrobenzoic acid. Their spectroscopic investigations have been carried out both in solution and solid state. Experimental details for the preparation and the structural ...

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IUPAC-NIST Solubility Data Series. 88. Esters with Water—Revised and Updated. Part 1. C2 to C4 Esters

16-Dec-2009 | Góral, Marian; Shaw, DavidG.; Mączyński, Andrzej; Wiśniewska-Gocłowska, Barbara; Jezierski, Aleksander, Journal of Physical and Chemical Reference Data, 2009

The mutual solubilities and related liquid-liquid equilibria of 19 binary systems of C2 to C4 esters with water are exhaustively and critically reviewed. Reports of experimental determination of solubility that appeared in the primary literature prior to the end of 2007 are compiled. For ten ...

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The cinnamate/monolignol pathway

18-Nov-2009 | Toshiaki Umezawa, Phytochemistry Reviews, 2009

The cinnamate/monolignol pathway provides precursors for various phenylpropanoid compounds including lignins, lignans, neolignans, p-hydroxycinnamate esters, coumarins, suberins, flavonoids, stilbenes and so on. Therefore, the pathway plays the central role in plant secondary metabolism. During ...

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Diesel biofuel viscosity and heat of combustion

17-Nov-2009 | Yu. V. Maksimuk, Z. A. Antonova, V. V. Fes’ko, V. N. Kursevich, Chemistry and Technology of Fuels and Oils, 2009

Measurements have been made on the kinematic viscosity at 20–80°C and on the upper heat of combustion of methyl esters of fatty acids from rapeseed, mustard, and colza oils and the oil of oily radish, as well as the ethyl esters of rapeseed oil. A method is proposed for calculating the viscosity ...

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Synthesis of compounds with potential antitumour activity. V. (2R,3S)-benzoylphenylisoserine esters with substituted bicyclo[3.3.1]nonanes

17-Sep-2009 | E. V. Nurieva, O. N. Zefirova, V. N. Nuriev, N. V. Zyk, D. G. Weiss, S. A. Kuznetsov, N. S. Zefirov, Moscow University Chemistry Bulletin, 2009

Four (2R,3S)-N-benzoylphenylisoserine esters with substituted bicyclo[3.3.1]nonanes are synthesized. The compounds are found to be unable to promote tubulin polymerization, but cause a weak tubulin aggregation (oligomerization).

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Synthesis, Antimicrobial Activity and Micellization of Gemini Anionic Surfactants in a Pure State as Well as Mixed With a Conventional Nonionic Surfactant

16-Sep-2009 | Fatma H. Abd El-Salam, Journal of Surfactants and Detergents, 2009

New gemini anionic surfactants were prepared from sodium salts of monoalkyl sulfosuccinate esters of ethylene glycol having variably long tails (C12, C16, C18) and dichloroethane. The chemical structures of the prepared surfactants were confirmed using different spectroscopic techniques. The ...

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The mechanism of thermal oxidation of a hydrotreated naphthenic lube base oil at high temperature

16-Sep-2009 | Han Sheng, Cheng Xinguo, Ma Shujie, Ren Tianhui, Chemistry and Technology of Fuels and Oils, 2009

Using KN4010 as a base stock, we monitored changes in peroxide value and oxygen-containing compounds were monitored against time at high temperature, using iodometry and infrared spectroscopy (IR), in order to investigate the mechanism of oxidation of a hydrotreated lube base oil. The results of ...

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Comparative study of nucleophilic efficacy of pralidoxime towards phosphorus, sulfur and thiophosphorus based esters

03-Sep-2009 | Shuchi Tiwari, Kallol K. Ghosh, Jan Marek, Kamil Kuca, Reaction Kinetics and Catalysis Letters, 2009

The nucleophilic substitution reaction of p-nitrophenyl diphenyl phosphate, p-nitrophenyl p-toluene sulfonate and insecticide fenitrothion with pralidoxime have been studied at 27 °C in the presence of different cationic surfactants. Micellar rate enhancements increase as the cationic head group ...

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