1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE
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1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE ??
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- 68-69 °C14 mm Hg(lit.)
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- 0.885 g/mL at 25 °C(lit.)
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- n
20/D 1.454(lit.)
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- 113 °F
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- 2-8°C
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- insol H2O; sol most organic solvents
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- Merck
- 14,6001
- CAS ??????
- 59414-23-2(CAS DataBase Reference)
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- ?? ? ???? ?? (GHS)
| ?? ???? ?? | 10 | ||
|---|---|---|---|
| ????? | 23-24/25 | ||
| ????(UN No.) | UN 1993 3/PG 3 | ||
| WGK ?? | 3 | ||
| F ?????? | 10-21 | ||
| TSCA | TSCA listed | ||
| ?? ?? | 3 | ||
| ???? | III | ||
| HS ?? | 29310099 |
1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE C??? ??, ??, ??
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CLEAR LIGHT YELLOW TO BROWN LIQUID??
1-Methoxy-3-trimethylsilyloxy-1,3-butadiene is used as a highly reactive diene for Diels-Alder reactions and hetero-Diels-Alder reactions.?? ??
1-Methoxy-3-trimethylsilyloxy-1,3-butadiene was originally prepared from 4-Methoxy-3-buten-2-one with Chlorotrimethylsilane-Triethylamine-Zinc Chloride in benzene as shown below (68% yield, eq 1). At the present time, the most efficient method is to use TMSCl-Lithium Bromide-Et3N in THF (91%).
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1-Methoxy-3-trimethylsilyloxy-1,3-butadiene can be kept in a stoppered container without appreciable decomposition, but it is extremely moisture sensitive.1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE ?? ?? ? ???
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1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE ?? ??
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