Microwave assisted synthesis of functionalized 2H-chromene-2-thiones and 1,2-dithiole-3-thiones from β-oxodithioesters: Characterization, in vitro cytotoxicity and in silico docking studies
作者:Siji Thonivalappil Bhaskaran、Paulson Mathew
DOI:10.1016/j.molstruc.2021.132071
日期:2022.3
β-Oxodithiocarboxylates condensed with salicylaldehydes in the presence of triethylamine under microwave irradiation to afford 2H-chromene-2-thiones in excellent yields. Microwave heating of a mixture of β-oxodithioesters and Lawesson's reagent (LR) under solvent-free conditions led to sulfurization of the β-oxodithioesters and subsequent cyclization to form 1,2-dithiole-3-thiones. The products were
β-氧代二硫代羧酸盐在三乙胺存在下在微波辐射下与水杨醛缩合,以优异的产率得到 2 H-色烯-2-硫酮。在无溶剂条件下对 β-氧代二硫酯和劳森试剂 (LR) 的混合物进行微波加热,导致 β-氧代二硫酯硫化,随后环化形成 1,2-二硫醇-3-硫酮。产物通过NMR光谱和X-射线衍射技术表征。与之前的报道不同,这些反应在没有任何金属催化剂的情况下,在无溶剂条件下的短时间内发生。体内细胞毒性和计算机对接研究揭示了这些化合物作为抗癌剂的实用性。