Huaiyuan Hu, Mayank Pratap Singh, Garima Singh Baghel
Jul 1, 2016
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Abstract
A synthesis is reported for 9,10-dimethyl-2,3,6,7-anthracenetetra(thioacetate), an anthracenetetrathiol derivative that may find use in molecular electronics and conducting metal-organic frameworks (MOFs). The easily accessible 2,3,6,7-tetrahydroxy-9,10-dimethylanthracene was treated with 2-(4-pyridyl)ethanethiol in molten p-toluenesulfonic acid to yield the tetra(thioether), which was methylated and then deprotected with triethylamine in the presence of acetic anhydride to yield 9,10-dimethyl-2,3,6,7-anthracenetetra(thioacetate), a protected form of the tetrathiol. Separately, the first synthesis of benzenepentathiol and streamlined syntheses of 1,2,4,5-benzenetetra(thioacetate) and benzenehexathiol are reported.