Synthesis and Characterization of Octakis(3-propyl ethanethioate)octasilsesquioxane
2011; American Chemical Society; Volume: 30; Issue: 17 Linguagem: Inglês
10.1021/om200477a
ISSN1520-6041
AutoresVuthichai Ervithayasuporn, Thapakorn Tomeechai, Nobuhiro Takeda, Masafumi Unno, Arada Chaiyanurakkul, Rangsinee Hamkool, Tanakorn Osotchan,
Tópico(s)Synthetic Organic Chemistry Methods
ResumoA novel octakis(3-propyl ethanethioate)octasilsesquioxane was successfully synthesized via nucleophilic substitution on octakis(3-chloropropyl)octasilsesquioxane using potassium thioacetate in aprotic dimethylformamide as a solvent. Complete substitution proceeded at room temperature within a day to produce a crystalline product in high yield. The reaction products were characterized by 1H, 13C, and 29Si NMR spectroscopy; ESI-MS; and single-crystal X-ray diffraction, confirming the structure of the cubic T8 cage and demonstrating that the substitution reaction on eight side chains progressed smoothly under ambient conditions without any cage rearrangement or cage decomposition.
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