Novel Acidic Ionic Liquids as Efficient and Recyclable Catalysts for the Cyclotrimerization of Aldehydes
作者:Heyuan Song、Jing Chen、Chungu Xia、Zhen Li
DOI:10.1080/00397911.2010.523804
日期:2012.1.15
Abstract A mild, efficient, and ecofriendly procedure for cyclotrimerization of aldehydes was realized by using a series of novel Brønsted acidicionicliquids (BAILs) consisting of double–SO3H groups in cations as catalysts. Good conversion of aldehydes and selectivity of trialkyl-1,3,5-trioxanes were achieved by using 1 mol% of BAILs. In addition, the catalyst system could be recycled and reused at
Process for the manufacture of cyclic acetals of aliphatic aldehydes
申请人:Chemische Werke Huels, A.G.
公开号:US04330474A1
公开(公告)日:1982-05-18
A process for preparing a cyclic acetal from a saturated, aliphatic aldehyde comprises contacting a saturated, aliphatic aldehyde of 2-16 carbon atoms with a silica gel.
从饱和的脂肪族醛制备环状缩醛的方法包括将2-16个碳原子的饱和脂肪族醛与二氧化硅凝胶接触。
Sato, Satoshi; Furuta, Hiromi; Sodesawa, Toshiaki, Journal of the Chemical Society. Perkin transactions II, 1993, # 3, p. 385 - 390
A convenient solvent-free preparation of 1,3,5-trioxanes
作者:Jacques Augé、Richard Gil
DOI:10.1016/s0040-4039(02)01899-3
日期:2002.10
In the presence of a small amount of trimethylsilyl chloride, aldehydes gave at room temperature in solvent-free conditions the corresponding 1,3,5-trioxanes with good to excellent yields. (C) 2002 Elsevier Science Ltd. All rights reserved.