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CAS No. : | 31001-77-1 | MDL No. : | MFCD00053923 |
Formula : | C6H16O2SSi | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | IKYAJDOSWUATPI-UHFFFAOYSA-N |
M.W : | 180.34 | Pubchem ID : | 2759524 |
Synonyms : |
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Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P501-P273-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313 | UN#: | 3334 |
Hazard Statements: | H315-H319-H413-H372 | Packing Group: | Ⅲ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Ca.100% | With 2,2-dimethoxy-2-phenylacetophenone; In tetrahydrofuran; at 20℃; for 0.25h;UV-irradiation; Inert atmosphere; | In a vial, OVS (0.5g, 0.79mmol), 1.0equiv (to ?Vi goups) of 3?mercaptopropylmethyldimethoxysilane (1.14g, 6.33mmol) and 2wtpercent of DMPA were dissolved in the minimal amount of anhydrous THF under the argon condition. The mixture was irradiated with stirring for 15min with UV light at room temperature. The solvent was evaporated in vacuo and then washed by distilled methanol to obtain SQ?[SiMe(OMe)2]8 as a viscous pale yellow oil (1.64g, yield ?100percent). SQ?[SiMe(OMe)2]8 can also be prepared without DMPA after 90min of irradiation. 1H NMR (300MHz, CDCl3, ppm): delta=0.13 (s, ?SiCH3, 24H), 0.72?0.76 (t, ?CH2Si(OCH3)2?, J=6.3Hz, 16H), 0.99?1.03 (t, ?SiCH2CH2S?, J=6.4Hz, 16H), 1.62?1.70 (m, ?SCH2CH2CH2?, 16H), 2.53?2.61 (m, ?CH2SCH2?, 32H), 3.52 (s, ?Si(OCH3)2?, 48H). 13C NMR (75MHz, CDCl3, ppm): delta=?5.80 (?SiCH3), 12.66 (?CH2Si(OCH3)2?), 13.03 (?SiCH2CH2), 22.95 (?SCH2CH2CH2?), 25.86 (?SiCH2CH2), 35.05 (?SCH2CH2CH2), 50.14 (?Si(OCH3)2?). 29Si NMR (60Hz, CDCl3, ppm): delta=?68.93 (?SiCH2CH2), ?1.91 (?SiMe(OMe3)2). FTIR (KBr, cm?1): 2926, 2836, 2359, 1452, 1411, 1258, 1123, 1082, 823; MS?ESI: 1007.21 [M?2OCH3]2+. Anal. Calcd for C64H152O28S8Si16: C, 37.03; H, 7.38; S, 12.36. Found: C, 36.90; H, 7.40; S, 12.39. |