Aryl Boronic Acid Catalysed Dehydrative Substitution of Benzylic Alcohols for C−O Bond Formation
作者:Susana Estopiñá‐Durán、Liam J. Donnelly、Euan B. Mclean、Bryony M. Hockin、Alexandra M. Z. Slawin、James E. Taylor
DOI:10.1002/chem.201806057
日期:2019.3.12
substitution of benzylicalcohols with a second alcohol to form new C−Obonds. This method has been applied to the intermolecular substitution of benzylicalcohols to form symmetrical ethers, intramolecular cyclisations of diols to form aryl‐substituted tetrahydrofuran and tetrahydropyran derivatives, and intermolecular crossed‐etherification reactions between two different alcohols. Mechanistic control
Catalytic dehydrative etherification and chlorination of benzyl alcohols in ionic liquids
作者:Hassan A. Kalviri、Chad F. Petten、Francesca M. Kerton
DOI:10.1039/b909866f
日期:——
Dibenzyl ethers and benzyl chloride can be obtained in moderate to excellent yields through Pd-catalysed reactions in hydrophobic ionic liquids using microwave or conventional heating.
在疏水性离子液体中,通过钯催化的反应,利用微波或常规加热,可以中等至优异的产率获得二苄醚和苄氯。
Direct Access to Acylated Azobenzenes and Amide Compounds by Reaction of Azoarenes with Benzylic Ethers as Acyl Equivalents
pathway for the Pd-catalyzed regiospecific ortho-acylation of azoarenes using benzylic ethers as acyl equivalents has been achieved. In the absence of palladium catalyst, amide compounds were formed by the reaction of azoarenes with benzylic ethers under certain conditions. Various mono-acylazobenzene and amide compounds were obtained in good yields (35 examples). The mono-acylated products and amide
Efficient carbon-supported heterogeneous molybdenum-dioxo catalyst for chemoselective reductive carbonyl coupling
作者:Shengsi Liu、Jiaqi Li、Titel Jurca、Peter C. Stair、Tracy L. Lohr、Tobin J. Marks
DOI:10.1039/c7cy00336f
日期:——
Reductivecoupling of various carbonyl compounds to the corresponding symmetric ethers with dimethylphenylsilane is reported using a carbon-supported dioxo-molybdenum catalyst. The catalyst is air- and mositure-stable and can be easily separated from the reaction mixture for recycling. In addition, the catalyst is chemoselective, thus enabling the synthesis of functionallized ethers without requiring
CaS<sub>2</sub>O<sub>8</sub>: An Efficient Reagent for Etherification of Alcohols under Microwave Irradiation in Solvent-Free Conditions
作者:Rashid Badri、Ali Reza Kiasat、Simin Nazari
DOI:10.1080/10426500601015682
日期:2007.4.1
A new facile and efficient one-pot method for the synthesis of ethers by the reaction of alcohols with calcium peroxodisulfate under microwave irradiation is described.