Synthesis of aryl substituted 2,4,5,6-tetrahydro-3H-1,2,4-triazepine-3-thiones/ones starting from chalcone-derived β-isothiocyanato ketones
作者:Anastasia A. Fesenko、Mikhail S. Grigoriev、Anatoly D. Shutalev
DOI:10.1016/j.tet.2016.10.021
日期:2016.12
A general two-step synthesis of 7-aryl substituted 2,4,5,6-tetrahydro-3H-1,2,4-triazepine-3-thiones from 1-aryl-3-isothiocyanatopropan-1-ones has been developed. The synthesis involved reaction of these isothiocyanato ketones with hydrazines followed by acid-catalyzed heterocyclization of the prepared 4-(3-oxopropyl)thiosemicarbazides or their hydrazones. Triazepine-3-thiones were converted into their
已开发了由1-芳基-3-异硫氰酸根合丙烷-1-酮合成7-芳基取代的2,4,5,6-四氢-3 H -1,2,4-三氮杂-3-硫酮的常规两步方法。合成涉及这些异硫氰酸根合酮与肼的反应,然后对制备的4-(3-氧丙基)硫代氨基脲或其进行酸催化的杂环化反应。通过在碱性条件下用H 2 O 2氧化将三氮杂-3-硫酮转化为它们的3-氧代类似物。使用1 H NMR光谱和单晶X射线衍射确定在DMSO溶液中和固态下获得的三氮杂-3-硫酮/酮的构型。
RICHTER, P.;STEINER, K., BIO-ORG. HETEROCYCL. SYNTH., PHYS. ORG. AND PHARMACOL. ASPECTS. PROC. 3TH+
作者:RICHTER, P.、STEINER, K.
DOI:——
日期:——
WEBER F. G.; PUSCH U.; BRAUER B., PHARMAZIE, 1979, 74, NO 7, 443-444