Simple, Rapid Procedure for the Synthesis of Chloromethyl Methyl Ether and Other Chloro Alkyl Ethers<sup>1</sup>
作者:Martin A. Berliner、Katherine Belecki
DOI:10.1021/jo051344g
日期:2005.11.1
Zinc(II) salts catalyze the reaction between acetals and acid halides to provide haloalkyl ethers in near-quantitative yield. Reactions from millimole to mole scale are typically complete in 1−4 h with 0.01 mol % catalyst. The solutions of haloalkyl ethers thus obtained can be utilized directly in reactions in which the presence of the ester byproduct does not interfere. Excess haloalkyl ether is destroyed
锌(II)盐催化缩醛与酰卤之间的反应,以接近定量的产率提供卤代烷基醚。通常,使用0.01 mol%的催化剂,从毫摩尔到摩尔级的反应会在1-4小时内完成。由此获得的卤代烷基醚的溶液可以直接用于酯副产物的存在不干扰的反应中。后处理会破坏过量的卤代烷基醚,从而最大程度地减少此类致癌化合物的暴露。