4157-77-1Relevant academic research and scientific papers
Molybdenum (VI)-catalyzed dehydrative construction of C[sbnd]O and C[sbnd]S bonds formation via etherification and thioetherification of alcohols and thiols
Singh, Rahulkumar Rajmani,Srivastava, Radhey S.,Whittington, Alex
, (2020/06/02)
An inexpensive, easily available, environmentally benign, and efficient catalyst molybdenum(VI) dioxo (acetylacetonate)2 was used for the direct oxo- and thioetherification of alcohol. This method endures selective molybdenum catalyzed dehydrative synthesis of symmetrical ethers from benzylic secondary alcohols as well as unsymmetrical ethers from the reaction of benzylic secondary alcohols with primary alcohol. Furthermore, we have been also successful in the synthesis of Aryl thioether by using alcohol and thiols.
W-Ti-O mixed metal oxide catalyzed dehydrative cross-etherification of alcohols
Yada, Akira,Murayama, Toru,Hirata, Jun,Nakashima, Takuya,Tamura, Masanori,Kon, Yoshihiro,Ueda, Wataru
, p. 447 - 449 (2018/03/27)
A dehydrative cross-etherification reaction of two different alcohols is achieved in the presence of hydrothermally synthesized tungsten-titanium mixed metal oxide (W-Ti-O) catalyst. The reaction is environmentally benign: organic solvent is not necessary and the catalyst is readily recovered and reusable.
Direct and efficient synthesis of unsymmetrical ethers from alcohols catalyzed by Fe(HSO4)3 under solvent-free conditions
Moghadam, Bashir Nazari,Akhlaghinia, Batool,Rezazadeh, Soodabeh
, p. 1487 - 1501 (2016/04/26)
Highly efficient Fe(HSO4)3 catalyzed etherification of primary, secondary and tertiary benzylic alcohols with primary and secondary aliphatic alcohols is reported. The reaction affords unsymmetrical benzyl ethers in good to excellent yields under solvent-free conditions.
Sulfated tungstate as hydroxyl group activator for preparation of benzyl, including p-methoxybenzyl ethers of alcohols and phenols
Katkar, Kamlesh V.,Veer, Sachin D.,Akamanchi, Krishnacharya G.
supporting information, p. 1893 - 1901 (2016/11/25)
Sulfated tungstate was found to be an effective heterogeneous and reusable catalyst for hydroxy group activation–mediated preparation of benzylic ethers including p-methoxybenzylic ethers of a wide range of alcohols and phenols under mild reaction conditions.
Novel gallium and indium salts of the 12-tungstophosphoric acid: Synthesis, characterization and catalytic properties
Filek, Urszula,Mucha, Dariusz,Hunger, Michael,Sulikowski, Bogdan
, p. 19 - 22 (2013/03/13)
The objective of this study was the preparation, characterization and testing of the catalytic properties of the GaPW12O40 and InPW12O40 salts of 12-tungstophosphoric heteropolyacid (HPW). The samples were characterized by XRD, IR, SEM, and 31P and 1H MAS NMR spectroscopy. The acid properties of the solids were directly accounted for by applying 1H MAS NMR. The salts were screened in the etherification of 1-phenylethanol with C1-C 4 alkanols in dichloromethane as a solvent to yield the corresponding C6H5CH(OR)CH3 unsymmetrical ethers. In comparison with pure HPW, the new salts revealed generally a higher selectivity of ethers formation at 65 °C.
Direct synthesis of unsymmetrical ethers from alcohols catalyzed by titanium cation-exchanged montmorillonite
Mitsudome, Takato,Matsuno, Tsuyoshi,Sueoka, Shoichiro,Mizugaki, Tomoo,Jitsukawa, Koichiro,Kaneda, Kiyotomi
supporting information; experimental part, p. 610 - 613 (2012/04/23)
Titanium-exchanged montmorillonite (Ti4+-mont) was found to act as an efficient heterogeneous catalyst for the etherification of a wide range of alcohols under mild reaction conditions. Ti4+-mont was reusable with retention of high efficiency and applicable to scale-up reaction conditions. The Royal Society of Chemistry 2012.
Oxidative nucleophilic substitution: Transformation of alkylboronic derivatives
Cazorla, Clément,Métay, Estelle,Lemaire, Marc
experimental part, p. 8615 - 8621 (2011/11/30)
An efficient amidation reaction is described in this paper. Potassium alkyltrifluoroborate salts can be transforming to amides from nitriles in the presence of copper acetate and boron trifluoride. An extension of this reaction allowed the formation of amines, ethers, and C-C bond.
Palladium-catalyzed inter- and intramolecular hydroamination of styrenes coupled with alcohol oxidation using N-fluorobenzenesulfonimide as the oxidant
Xu, Tao,Qiu, Shuifa,Liu, Guosheng
experimental part, p. 46 - 49 (2011/02/17)
Palladium-catalyzed inter- and intramolecular hydroaminations of styrenes that are coupled to alcohol oxidation under oxidative condition are reported. The fluorination reagent NFSI is used as the nitrogen source as well as the oxidant. Bidental nitrogen
Silica-supported KHSO4: An efficient system for activation of aromatic terminal olefins
Das, Ram Nath,Sarma, Kuladip,Pathak, Madan Gopal,Goswami, Amrit
supporting information; experimental part, p. 2908 - 2912 (2011/02/25)
Potassium hydrogen sulfate adsorbed on chromatography-grade silica gel activates electron-rich aromatic terminal olefins towards nucleophilic attack at the benzylic position by alcohols. Temperature plays a crucial role and facilitates suppressing nucleophilic reaction in favor of dimerization of the terminal olefin. Georg Thieme Verlag Stuttgart - New York.
Effective Au(III)-CuCl2-catalyzed addition of alcohols to alkenes
Zhang, Xin,Corma, Avelino
, p. 3080 - 3082 (2008/02/10)
Alkenes can be activated by Au(III) catalysts, and the effective addition of alcohols to alkenes can be carried out under mild conditions with Au(III), provided that catalytic amounts of CuCl2 are added, which significantly stabilize the cationic Au(III). The Royal Society of Chemistry.
