Solid-state conversion of 1,1-diacetates with N,N′-dibromo-N,N′-1,2-ethanediylbis(p-toluenesulfonamide) to aldehydes
摘要:
N,N'-Dibromo-N,N'-1,2-ethanediylbis(p-toluenesulfonamide) can be used for the solid-state conversion of 1,1-diacetates to aldehydes in excellent yields.
A Facile and Efficient Conversion of Aldehydes into 1,1-Diacetates (Acylals) using Iron(III) Fluoride as a Novel Catalyst
作者:V. T. Kamble、R. A. Tayade、B. S. Davane、K. R. Kadam
DOI:10.1071/ch06166
日期:——
Aldehydes are smoothly converted into the corresponding 1,1-diacetates (acylals) in high yields in the presence of a catalytic amount (0.1 mol-%) of iron(III) fluoride at room temperature. The noteworthy features of the present system are shorter reaction times, chemoselective protection of aldehydes, and solvent-free conditions. The procedure is especially useful for large-scale syntheses as the catalyst
Copper(II) Tetrafluoroborate-Catalyzed Formation of Aldehyde-1,1-diacetates<sup />
作者:Asit K. Chakraborti、Ramasamy Thilagavathi、Raj Kumar
DOI:10.1055/s-2004-816000
日期:——
Aldehyde 1,1-diacetates are formed in excellent yields from aldehydes and acetic anhydride under solvent-free conditions at room temperature in short times in the presence of a catalytic amount of copper(II) tetrafluoroborate hydrate.
An efficient method for the synthesis of acylals from aldehydes using silica-supported perchloric acid (HClO4–SiO2)
作者:Vinod T. Kamble、Vasant S. Jamode、Neeta S. Joshi、Ankush V. Biradar、Rameshchandra Y. Deshmukh
DOI:10.1016/j.tetlet.2006.05.125
日期:2006.7
The synthesis of acylals from structurally diverse aldehydes has been performed in excellent yields under solvent-free conditions using HClO4–SiO2 as a mild, convenient, reusable, and heterogeneous catalyst. The procedure is operationally simple, environmentally benign and has the advantage of enhanced atom utilization. Furthermore, the catalyst can be recovered simply and reused efficiently a number
RuCl<sub>3</sub> · <i>x</i>H<sub>2</sub>O: A New Efficient Catalyst for Facile Preparation of 1,1‐Diacetates from Aldehydes
作者:Anil Saini、Sanjay Kumar、Jagir. S. Sandhu
DOI:10.1080/00397910701650831
日期:2007.12.1
Abstract An efficient, facilepreparation of aldehyde 1,1‐diacetates (acylals) in excellent yields catalyzed by RuCl3 · xH2O is described. Ketones do not react under these conditions.