Regio- and stereoselective synthesis of (Z)-2-Arylsulfanyl allylic alcohols using anhydrous CeCl3 as catalyst under solvent free conditions
作者:Claudio C. Silveira、Guilherme M. Martins、Samuel R. Mendes
DOI:10.1016/j.tetlet.2013.07.142
日期:2013.10
Anhydrous CeCl3 was successfully employed as catalyst for the synthesis of (Z)-2-Arylsulfanyl allylic alcohols from propargylic alcohols and thiols under solvent free conditions. The products were obtained in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
Copper(II) Bromide Catalyzed Novel Preparation of Propargylic Ethers and Sulfides by S<sub>N</sub>1-Type Substitution between Propargylic Alcohols and Alcohols or Thiols
A general and efficient copper(II) bromide catalyzed substitution reaction of propargylicalcohols with carbon and heteroatom-centered nucleophiles, such as alcohols and thiols, leading to the construction of C-O and C-S bonds has been developed. High product yields were obtained with excellent regioselectivity.
已经开发了一种通用且高效的溴化铜 (II) 催化炔丙醇与碳和以杂原子为中心的亲核试剂(如醇和硫醇)的取代反应,从而构建 CO 和 CS 键。以优异的区域选择性获得了高产率。