68176-36-3Relevant academic research and scientific papers
Direct halogenation of alcohols with halosilanes under catalyst- and organic solvent-free reaction conditions
Ajvazi, Njomza,Stavber, Stojan
, p. 2430 - 2433 (2016)
A chemoselective method for the direct halogenation of different types of alcohols with halosilanes under catalyst- and solvent-free reaction conditions (SFRC) is reported. Various primary, secondary and tertiary benzyl alcohols and tertiary alkyl alcohols were directly transformed to the corresponding benzyl and alkyl halides, respectively, using chlorotrimethylsilane (TMSCl) and bromotrimethylsilane (TMSBr).
Synthetic method of borane-catalyzed symmetric ether
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Paragraph 0043-0052, (2021/07/28)
The invention provides a borane-catalyzed symmetric ether synthesis method, which is characterized in that alcohol is used as a raw material, and under the catalysis of B(2,6-Cl2C6H3) (p-HC6F4) 2, etherification reaction is carried out through intermolecular dehydration to generate ether. The reaction process is simple, mild, pollution-free and efficient.
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.
Cp*CoIII-Catalyzed Efficient Dehydrogenation of Secondary Alcohols
Gangwar, Manoj Kumar,Dahiya, Pardeep,Emayavaramban, Balakumar,Sundararaju, Basker
supporting information, p. 2445 - 2448 (2018/09/10)
A novel, well-defined molecular Cp*CoIII complex was isolated and structurally characterized for the first time. The efficiency of this cobalt catalyst was demonstrated in the alcohol dehydrogenation and dehydrative coupling of secondary alcohols under mild conditions into ketones and ethers, respectively.
Selective synthesis of thioethers in the presence of a transition-metal-free solid Lewis acid
Santoro, Federica,Mariani, Matteo,Zaccheria, Federica,Psaro, Rinaldo,Ravasio, Nicoletta
supporting information, p. 2627 - 2635 (2017/01/09)
The synthesis of thioethers starting from alcohols and thiols in the presence of amorphous solid acid catalysts is reported. A silica alumina catalyst with a very low content in alumina gave excellent results in terms of both activity and selectivity also under solvent-free conditions. The reaction rate follows the electron density of the carbinol atom in the substrate alcohol and yields up to 99% and can be obtained for a wide range of substrates under mild reaction conditions.
Sodium bisulfite: An efficient catalyst for ether formation via dehydration of aromatic/aliphatic alcohol
Wang, Hui,Zhu, Xingfei,Lu, Yangning,Li, Yue,Gao, Xiang
, p. 1180 - 1184 (2012/04/23)
Straightforward etherification of benzyl alcohols (1) via intermolecular dehydration can be efficiently catalyzed by sodium bisulfite under solvent-free conditions. In the presence of 0.3 mol% or 0.6 mol% amount of sodium bisulfite, symmetric and unsymmetric ethers are prepared from the corresponding alcohols in high yields (up to 95%). Etherification of benzhydryl alcohols is also discussed. Copyright
Selectivity enhancement of silica-supported sulfonic acid catalysts in water by coating of ionic liquid
Gu, Yanlong,Karam, Ayman,Jerome, Francois,Barrault, Joel
, p. 3145 - 3148 (2008/02/10)
Coating of silica-supported sulfonic acid catalysts with hydrophobic ionic liquid leads to a significant improvement of catalyst selectivity. Many organic reactions, including Prins cyclization, cycloaddition of epoxide to aldehyde, and dehydrative etherification of secondary benzyl alcohols, proceed well in formalin or pure water. In particular, tandem dehydration/Prins cyclization reactions of tertiary and secondary alcohols with formaldehyde were developed for the first time.
Zirconium tetrachloride catalysed synthesis of symmetric and unsymmetric ethers from secondary benzylic alcohols
Das, Biswanath,Krishnaiah, Maddeboina,Veeranjaneyulu, Boyapati,Srinivas, Yallamalla,Rao, Yerra Koteswara
, p. 717 - 719 (2008/09/20)
Secondary benzylic alcohols are coupled in the presence of zirconium tetrachloride to afford the corresponding symmetrical ethers in good yields. Unsymmetric ethers are obtained with good selectivity by condensation of two different secondary benzylic alcohols under the action of the same catalyst.
Palladium-catalyzed SN1 reactions of secondary benzylic alcohols: Etherification, amination, and thioetherification
Miller, Kimberly J.,Abu-Omar, Mahdi M.
, p. 1294 - 1299 (2007/10/03)
The reaction of various secondary benzylic alcohols in the presence of PdII catalysts provides ethers in good to high yields, Unsymmetric ethers could also be obtained with good selectivity by coupling two different alcohols. Direct amination is observed with electron-deficient anilines, and thioethers are prepared conveniently in high yields by the direct action of thiols on sec-phenylethyl alcohol. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
