Catalysis by lithium perchlorate in dichloromethane: Diels-Alder reactions and 1,3-Claisen rearrangements
作者:Manfred T. Reetz、Andreas Gansäuer
DOI:10.1016/s0040-4020(01)87187-8
日期:1993.7
Lithium perchlorate suspended in dichloromethane is an efficient catalyst (4 – 25 mol-%) for stereoselective Diels-Alder, hetero-Diels-Alder and regioselective 1,3-Claisen rearrangements; this process is milder, safer and environmentally less precarious than the use of 1 – 5 molar solution of LiClO4 in ether described previously in the literature.
悬浮在二氯甲烷中的高氯酸锂是一种有效的催化剂(4 – 25 mol%),可用于立体选择性Diels-Alder,杂Diels-Alder和区域选择性1,3-Claisen重排;与先前文献中所述的在乙醚中使用1至5摩尔的LiClO 4摩尔溶液相比,该过程更为温和,安全和环保。