102-16-9Relevant articles and documents
Preparation of acyl fluorides with hydrogen fluoride-pyridine and 1,3-dicyclohexylcarbodiimide
Chen, Chinpiao,Chien, Chin-Tzu,Su, Chu-Hsiang
, p. 75 - 77 (2002)
This work presents an efficient procedure for preparing acyl fluorides by simply reacting carboxylic acid with hydrogen fluoride-pyridine and 1,3-dicyclohexylcarbodiimide (DCC) in dichloromethane. The acyl fluorides were converted in situ to the corresponding benzyl carboxylic esters by adding benzyl alcohol and triethylamine to the reaction mixture.
Efficient esterification of carboxylic acids with alkyl halides catalyzed by fluoride ions in ionic liquids
Brinchi,Germani,Savelli
, p. 6583 - 6585 (2003)
Ionic liquids based on 1,3-dialkylimidazolinium methanesulfonate have been used as efficient reusable reaction media in the esterification of several carboxylic acids with alkyl halides catalyzed by fluoride ions. The method has wide applicability, and it is mild and green; it is useful for the protection of acids, via ester formation, for alkali labile molecules.
S,S-Bis Dithiocarbonate. A New Reactive Coupling Agent for the Direct Esterification of Carboxylic Acids
Kim, Sunggak,Kim, Sung Soo
, p. 1017 - 1019 (1986)
S,S-Bis dithiocarbonate, prepared from 4,6-dimethyl-2-pyrimidinethiol hydrochloride and phosgene in the presence of triethylamine in dichloromethane/toluene, is a new reactive coupling agent for the direct esterification of carboxylic acids with alcohols.
Use of diethoxymethane as a solvent for phase-transfer esterification of carboxylic acids
Coleman, M. Todd
, p. 1911 - 1913 (2012)
The esterification of carboxylic acids with selected primary alkyl halides in diethoxymethane (DEM) utilizing solid-liquid phase-transfer catalysis has been studied. The use of DEM as the solvent simplifies the process in that a single solvent can be used for both reaction and workup.
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Williams,K.,Halpern,B.
, p. 727 - 728 (1974)
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One-electron Oxidation of Carboxylates by Hexachloroosmate(V) Ion
Eberson, Lennart,Nilsson, Monica
, p. 1041 - 1042 (1992)
Hexachloroosmate(V) cleanly oxidizes tetrabutylammonium tert-butylcyanoacetate to decarboxylative-coupling products, meso- and rac-2,3-di-tert-butylsuccinonitrile, thus constituting the first metal ion-based oxidant to be found to simulate properly this aspect of the Kolbe anodic oxidation of carboxylates.
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Inomata et al.
, p. 1866 (1978)
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Mercury(II) Oxide/Tetrafluoroboric Acid; A General Method for Esters from Carboxylic Acids and Alkyl Halides
Barluenga, Jose,Alonso-Cires, Luisa,Campos, Pedro, J.,Asensio, Gregorio
, p. 649 - 651 (1983)
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Palladium-catalyzed carbonylation of benzyl alcohol and its analogs promoted by HI in aqueous systems
Lin, Yong-Shou,Yamamoto, Akio
, p. 3747 - 3750 (1997)
Carbonylation of benzyl alcohol catalyzed by a palladium(0) complex and promoted by hydrogen iodide gives phenylacetic acid in excellent yields in aqueous systems. The catalysis is proposed to proceed through a benzylpalladium species formed by the oxidative addition of benzyl iodide, produced in situ by the interaction of benzyl alcohol with HI, to a Pd(0) species. Application of the carbonylation process to other arylmethanol analogs provided convenient means to prepare 3-isochromanone, 1,4-benzenediacetic acid, 2-hydroxybenzeneacetic acid and 2-naphthaleneacetic acid.
Synthesis of Quinolines via the Metal-free Visible-Light-Mediated Radical Azidation of Cyclopropenes
Smyrnov, Vladyslav,Muriel, Bastian,Waser, Jerome
supporting information, p. 5435 - 5439 (2021/07/21)
We report the synthesis of quinolines using cyclopropenes and an azidobenziodazolone (ABZ) hypervalent iodine reagent as an azide radical source under visible-light irradiation. Multisubstituted quinoline products were obtained in 34-81% yield. The reaction was most efficient for 3-trifluoromethylcyclopropenes, affording valuable 4-trifluoromethylquinolines. The transformation probably proceeds through the cyclization of an iminyl radical formed by the addition of the azide radical on the cyclopropene double bond, followed by ring-opening and fragmentation.
Benzyne-Mediated Esterification Reaction
Li, Yang,Shi, Jiarong,Zhao, Jinlong
supporting information, p. 7274 - 7278 (2021/10/01)
A benzyne-mediated esterification of carboxylic acids and alcohols under mild conditions has been realized, which is made possible via a selective nucleophilic addition of carboxylic acid to benzyne in the presence of alcohol. After a subsequent transesterification with alcohol, the corresponding esters can be produced efficiently. This benzyne-mediated protocol can be used on the modification of Ibuprofen, cholesterol, estradiol, and synthesis of nandrolone phenylpropionate. In addition, benzyne can also be used to promote lactonization and amidation reaction.