A fast, mild, and quantitative procedure for the preparation of tetrahydrobenzo[b]pyran derivatives in the presence of an easily accessible basic ionic liquid—[bmIm]OH(3-butyl-1-methylimidazoliumhydroxide) as the catalyst has been developed. The ionic liquid was stable during the reaction process and could also be reused at least nine times with consistent activity. This procedure may be a practical
                                    已经开发了一种快速,温和和定量的方法,用于在容易获得的碱性
离子液体-[bmIm] OH(3-丁基-1-甲基
咪唑鎓氢氧化物)作为催化剂的情况下制备四氢苯并[ b ]
吡喃衍
生物。
离子液体在反应过程中是稳定的,并且在具有一致活性的情况下也可以重复使用至少9次。该程序可能是现有程序的一种实用替代方案,可以满足学术界和行业的需求。J.杂环化学,(2009)。