Nickel-catalyzed direct synthesis of dialkoxymethane ethers
作者:Murugan Subaramanian、Abhijit Bera、Bhagavatula L V Prasad、Ekambaram Balaraman
DOI:10.1007/s12039-017-1339-6
日期:2017.8
and aromatic alcohols and provides a benign method for the preparation of symmetrical dialkoxymethanes in good yields (up to 89%). Graphical AbstractSYNOPSIS A facile nickel-catalyzed synthesis of dialkoxymethane ethers from alcohols and paraformaldehyde using inexpensive, commercially available \(\hbox NiBr}_2}\) is reported. The reaction proceeds readily under mild, neutral and solvent-free conditions
Metathesis Reaction of Formaldehyde Acetals: An Easy Entry into the Dynamic Covalent Chemistry of Cyclophane Formation
作者:Roberta Cacciapaglia、Stefano Di Stefano、Luigi Mandolini
DOI:10.1021/ja054362o
日期:2005.10.1
equilibrating system, translated into significant amplifications of C2 when the equilibrated mixtures were exposed to the action of the silver template. These results highlight the potential of Dynamic Combinatorial Chemistry as a powerful tool for the preparation in synthetically useful amounts of an otherwise elusive macrocyclic compound. The possibility of using a mixture of high molecular weight byproducts
A stabilized halogen-containing resin composition wherein
(a) 0.01 to 10 weight parts of a hydrotalcite,
(b) 0.01 to 5 weight parts of a zinc compound,
(c) 0.01 to 5 weight parts of magnesium hydroxide, and
(d) 0.01 to 5 weight parts of a β-diketone compound and/or a phosphite compound are compounded into a halogen-containing resin per 100 weight parts thereof and a molding article therefrom.
An efficient method for the preparation of dialkoxymethanes from dichloromethane with alcohols catalyzed by a Cu-NHC complex
作者:Lewu Zhan、Renming Pan、Ping Xing、Biao Jiang
DOI:10.1016/j.tetlet.2016.07.056
日期:2016.9
A facile, rapid and efficient method for the preparation of dialkoxymethanes from dichloromethane with alcohols catalyzed by a Cu-NHC complex is reported. A variety of symmetrical dialkoxymethanes can be prepared under mild condition in excellent yields (up to 98%). The unsymmetrical ether is also obtained in 89% yield from the etherification of p-tolylmethanol and n-butyl chloride catalyzed by ICyCuCl