bis(5‐methyl‐2‐furyl)methanes has been achieved via the reaction of 2‐methylfuran with a series of aliphatic and aromatic aldehydes and aliphatic ketones in presence of copper(II) triflate under solvent free conditions. The bis(5‐methyl‐2‐furyl)methanes were obtained in 34% –72% yields and the catalyst was recycled up to four successive cycles without much loss in catalytic activity.
                                    在
铜(II)存在下,
2-甲基呋喃与一系列脂族和芳族醛以及脂族酮的反应,实现了双(5-甲基-2-
呋喃基)
甲烷的高效简便的单锅三组分合成)在无溶剂的条件下使用
三氟甲磺酸。获得双(5-甲基-2-
呋喃基)
甲烷,产率为34%–72%,催化剂可循环使用多达四个连续周期,而催化活性却没有太大损失。