Kawada Atsushi, Yasuda Kayo, Abe Hitoshi, Harayama Takashi
Nippon Steel Chemical Co., Ltd., Research & Development Laboratories, Kitakyushu, Japan.
Chem Pharm Bull (Tokyo). 2002 Mar;50(3):380-3. doi: 10.1248/cpb.50.380.
Rare earth metal trifluoromethanesulfonates [rare earth metal triflate, RE(OTf)3] were found to be efficient catalyst for benzyl-etherification. In the presence of a catalytic amount of RE(OTf)3, condensation of benzyl alcohols and aliphatic alcohols proceeded smoothly to afford the benzyl ethers. The condensation between benzyl alcohols and thiols also proceeded, and thio ethers were obtained in good yield. In these reactions, RE(OTf)3 could be recovered easily after the reactions were completed and could be reused without loss of activity.
稀土金属三氟甲磺酸盐[稀土金属三氟甲磺酸盐，RE(OTf)3]被发现是苄基醚化反应的有效催化剂。在催化量的RE(OTf)3存在下，苄醇与脂肪醇的缩合反应顺利进行，生成苄基醚。苄醇与硫醇之间的缩合反应也能进行，并能以良好的产率得到硫醚。在这些反应中，反应完成后RE(OTf)3可轻松回收，且可重复使用而不损失活性。
