Bromoarylation of Methyl 2-Chloroacrylate under Meerwein Conditions for the Synthesis of Substituted 3-Hydroxythiophenes
作者:Yurii V. Ostapiuk、Andreas Schmidt、Maksym Shehedyn、Oksana V. Barabash、Bohdan Demydchuk、Sviatoslav Batsyts、Colin Herzberger
DOI:10.1055/s-0040-1719849
日期:2022.2
Methyl 3-aryl-2-bromo-2-chloropropanoates can be prepared by Meerwein reaction from methyl 2-chloroacrylate and various arenediazonium salts under copper(II) bromide catalysis. The resulting readily available compounds were used as starting materials in reactions with substituted methanethiols for the construction of substituted 3-hydroxythiophenes which have not yet been accessible by other routes
3-芳基-2-溴-2-氯丙酸甲酯可由2-氯丙烯酸甲酯和各种芳烃重氮盐在溴化铜(II)催化下通过Meerwein反应制备。所得容易获得的化合物用作与取代的甲硫醇反应的起始材料,用于构建尚未通过其他途径获得的取代的 3-羟基噻吩。由于可用的起始材料范围广泛,包括苯胺和硫醇,已经实现了所获得的 2-取代 5-芳基-3-羟基噻吩的结构多样性。