Bismuth(III) Triflate: Novel and Efficient Catalyst for Claisen and Fries Rearrangements of Allyl Ethers and Phenyl Esters
作者:B. Sreedhar、V. Swapna、Ch. Sridhar
DOI:10.1081/scc-120030693
日期:2004.12.31
Abstract Bismuth(III) triflate catalyzed Claisen and Fries rearrangements of allyl phenyl ethers and phenyl acetates have been presented. The reaction proceeds smoothly and yields corresponding rearranged products in good yields. The bismuth triflate displays higher activity over the corresponding La, Yb, and Sc triflates.
摘要 三氟甲磺酸铋 (III) 催化了烯丙基苯基醚和乙酸苯酯的 Claisen 和 Fries 重排。反应顺利进行,并以良好的收率得到相应的重排产物。三氟甲磺酸铋显示出比相应的 La、Yb 和 Sc 三氟甲磺酸盐更高的活性。