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CAS No. : | 60836-10-4 | MDL No. : | |
Formula : | C11H18OSi2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 222.43 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Class: | ||
Precautionary Statements: | UN#: | ||
Hazard Statements: | Packing Group: |
* 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 |
---|---|---|
35% | In tetrahydrofuran; diethyl ether; toluene at 54℃; for 8h; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | With dimethylaluminum chloride In hexane; dichloromethane at -78℃; Inert atmosphere; | Compound 508 To a solution of 200a (93 mg, 0.42 mmol) in CH2C12 (4 mL) at -78 °C under N2 was added dimethylaluminum chloride (0.50 mL, 0.50 mmol, 1.0 M in hexanes) followed by 2,3-dimethyl- 1,3-butadiene (287 mg, 3.35 mmol). The reaction was stirred until complete by TLC (1-1.5 hours). The reaction was quenched at -78 °C with saturated aqueous NaHC03 and extracted with Et20. The layers were separated, the organic phase washed with H2O, brine, and dried over Na2S04. The mixture was filtered through a silica gel plug and the solvent was removed in vacuo to yield crude 508 (112 mg, 88%) as a colorless oil and was not further purified: R/= 0.7 (EtOAc:hexanes, 1: 10); NMR (500 MHz, C6D6): (5 = 3.11 (t, J = 8.0 Hz, 2H), 2.78 (t, .7 = 8.1 Hz, 2H), 1.54 (s, 3H), 1.47 (s,3H), 0.31 (s, 9H). 0.05 (s, 9H); 13C NMR (125 MHz, C6D6): δ = 179.1, 152.8, 142.0, 122.4, 122.4, 103.5, 99.5, 39.9, 35.6, 18.4, 17.9, -0.2, -0.8; IR (film): 2920, 1644 cm-1 ; HRMS (ESI-TOF) mlz calcd for [Ci7H28Si20+H]+ 305.1751 ; found 305.1753. |
With dimethylaluminum chloride In hexane; dichloromethane at -78℃; Inert atmosphere; |