Bismuth Trichloride Catalyzed Efficient Reductive Etherification of Carbonyl Compounds with Alcohols: A Novel Method for Preparation of Symmetrical and Unsymmetrical Ethers
The reductive homocoupling of a carbonylcompound and heterocoupling of a carbonylcompound with a non-protected alcohol were both effected smoothly at room temperature with triethylsilane in the presence of a catalytic amount of bismuth trichloride to afford the corresponding ethers in good yields.
The Efficiency of the Metal Catalysts in the Nucleophilic Substitution of Alcohols is Dependent on the Nucleophile and Not on the Electrophile
作者:Srijit Biswas、Joseph S. M. Samec
DOI:10.1002/asia.201201178
日期:2013.5
efficiency and selectivity to perform the desired substitution. Interestingly, the selectivity of the alcohols to produce the desired substitution products was found to be independent of the electrophilicity of the generated carbocations but highly dependent on the ease of formation of the cation. Catalysts based on iron(III), bismuth(III), and gold(III) show higher conversions for S‐, C‐, and N‐centered
Organohalide-catalyzed dehydrative O-alkylation between alcohols: a facile etherification method for aliphatic ether synthesis
作者:Qing Xu、Huamei Xie、Pingliang Chen、Lei Yu、Jianhui Chen、Xingen Hu
DOI:10.1039/c5gc00284b
日期:——
Organohalides effectively catalyzed dehydrative O-alkylation reactions between alcohols, providing selective, practical, green, and easily scalable homo- and cross-etherification methods for the preparation of useful symmetrical and unsymmetrical aliphatic ethers.
Symmetrical and unsymmetrical ethers are prepared from carbonylcompounds and alkoxytrimethylsilanes in the presence of hydrosilane by using an electrogenerated acidcatalyst.
Iron(III) Chloride-catalyzed Reductive Etherification of Carbonyl Compounds with Alcohols
作者:Katsuyuki Iwanami、Kentaro Yano、Takeshi Oriyama
DOI:10.1246/cl.2007.38
日期:2007.1
A facile reductive etherification of carbonylcompounds can be performed by the reaction with alcohols and triethylsilane catalyzed by iron(III) chloride. The corresponding alkyl ethers are obtaine...