Alkylalanes and methyl furanosides: regioselective O-debenzylation or acetal cleavage
                                
                                    
                                        作者:Cai Jia、Yongmin Zhang、Li-He Zhang、Pierre Sinaÿ、Matthieu Sollogoub                                    
                                    
                                        DOI:10.1016/j.carres.2006.05.002
                                    
                                    
                                        日期:2006.9
                                    
                                    Perbenzylated methyl pentofuranosides were submitted to the action of three alkylalanes and regioselective debenzylation at O-2 of the four pentoses was observed when choosing the right match between anomeric configuration and aluminium reagent. Diisobutylalane (DIBAL-H) allowed an easy access to reduced open-chain compounds, whereas trimethylalane (TMAL) stereoselectively produced methylated open chain derivatives. (c) 2006 Elsevier Ltd. All rights reserved.