Acetonyltriphenylphosphonium bromide in organic synthesis: a useful catalyst in the cyclotrimerization of aldehydes
作者:Yung-Son Hon、Chia-Fu Lee
DOI:10.1016/s0040-4020(01)00588-9
日期:2001.7
Acetonyltriphenylphosphonium bromide (ATPB) is a useful catalyst for the cyclotrimerization of the aliphatic aldehydes under solvent-free condition. The aldehydes tethered with a variety of functionality such as olefin, ether, ester, bromide, azide and diester could also be cyclotrimerized under the catalysis of ATPB.
InCl<sub>3</sub>as an Efficient Catalyst for Cyclotrimerization of Aldehydes: Synthesis of 1,3,5‐Trioxane Under Solvent‐Free Conditions
作者:E. Elamparuthi、E. Ramesh,、R. Raghunathan
DOI:10.1080/00397910500290524
日期:2005.11.1
1,3,5-Trioxanes derived from aldehydes were synthesized using indium trichloride as a catalyst. Cyclotrimerization of the aldehydes gave excellent yields under neat conditions within a short span of time.