Synthesis of 1-(4-Trifluoromethoxyphenyl)-2,5-dimethyl-3-(2-R-thiazol-4-yl)-1H-pyrroles via Chain Heterocyclization
作者:Mykhaylo V. Vovk、Oleksandr M. Pinchuk、Andrij O. Tolmachov、Andrei A. Gakh
DOI:10.3390/molecules15020997
日期:——
The title compounds, (4-trifluoromethoxyphenyl)-2,5-dimethyl-3-(2-R-thiazol-4-yl)-1H-pyrroles, were prepared in four steps starting from commercially available 4-trifluoromethoxyaniline. The pyrrole (second ring) was added in one step using the Paal-Knorr method. The thiazole (third ring) was added in three steps using chloroacylation with chloroacetonitrile followed by heterocyclization with thioamides/thioureas.
标题化合物(4-三氟甲氧基苯基)-2,5-二甲基-3-(2-R-噻唑-4-基)-1H-吡咯是在商业可得的4-三氟甲氧基苯胺基础上通过四个步骤合成的。吡咯(第二个环)是通过Paal-Knorr方法一步添加的。噻唑(第三个环)则是通过氯乙酰化与氯乙腈反应,随后与硫酰胺/硫脲进行异环化,在三个步骤中添加的。