作者:Frank Burkamp、Stephen R. Fletcher
DOI:10.1002/jhet.5570390611
日期:2002.11
report an efficient entry into substituted 3-(ω-aminoalkyl)-benzo[b]thiophenes that allows rapid generation of structural diversity. Alkylation of α,ω-dihaloketones with thiophenols followed by acid-catalysed cyclisation led to an efficient synthesis of 3-(ω-aminoalkyl)benzo[b]thiophenes. 2-Carboethoxy derivatives were prepared using a directed ortho-metallation approach. These derivatives were readily
我们报告有效地进入取代的3-(ω-氨基烷基)-苯并[ b ]噻吩,允许快速产生结构多样性。α,ω-二卤代酮与硫酚的烷基化,然后酸催化的环化反应导致3-(ω-氨基烷基)苯并[ b ]噻吩的有效合成。2-碳乙氧基衍生物是使用定向邻位金属化方法制备的。这些衍生物易于转化为相应的胺。