?????
|
|
????? ??
- ???
- −16 °C(lit.)
- ?? ?
- 32-34 °C12 mm Hg(lit.)
- ??
- 0.848 g/mL at 20 °C(lit.)
- ???
- n
20/D 1.470
- ???
- 77 °F
- ???
- ?? ???
- ??
- ?? ?? ?? ??
- BRN
- 1901031
- LogP
- 3.930
- CAS ??????
- 931-88-4(CAS DataBase Reference)
??
- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
| ??? ?? | Xn | ||
|---|---|---|---|
| ?? ???? ?? | 10-65 | ||
| ????? | 29-33-62-16 | ||
| ????(UN No.) | UN 3295 3/PG 3 | ||
| WGK ?? | 3 | ||
| HS ?? | 2902.19.0050 | ||
| ?? ?? | 3.2 | ||
| ???? | III | ||
| ???? ?? | KE-09281 |
????? C??? ??, ??, ??
Purification Methods
The cis-isomer is freed from the trans-isomer by fractional distillation through a spinning-band column, followed by preparative gas chromatography on a Dowex 710-Chromosorb W GLC column. It is passed through a short alumina column immediately before use [Collman et al. J Am Chem Soc 108 2588 1986]. It has also been distilled in a dry N2 glove box from powdered fused NaOH through a Vigreux column (p 11), then passed through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 4328 1987]. Alternatively it can be purified via the AgNO3 salt. This salt is obtained from crude cyclooctene (40 mL) by shaking at 70-80o with 50% w/w AgNO3 (2 x 15 mL) to remove cyclooctadienes (aqueous layer). Extraction is repeated at 40o (4 x 20 mL, of 50% AgNO3). Three layers are formed each time. The middle layer contains the AgNO3 adduct of cyclooctene which crystallises on cooling the layer to room temperature. The adduct (complex 2:1) is highly soluble in MeOH (at least 1g/mL) from which it crystallises in large flat needles when cooled at 0o. It is dried under slight vacuum for 1 week in the presence of CaCl2 and paraffin wax soaked in cyclooctene. It has m 51o and loses hydrocarbon on exposure to air. cis-Cyclooctene can be recovered by steam distillation of the salt, collected, dried (CaCl2) and distilled in vacuum. [Braude et al. J Chem Soc 4711 1957, AgNO3: Jones J Chem Soc 1808 1954, Cope & Estes J Am Chem Soc 72 1128 1950, Beilstein 5 I 35, 5 IV 263.] FLAMMABLE LIQUID.????? ?? ?? ? ???
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????? ?? ??
???( 103)?? ??
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????? ?? ??:
??-?????? α-??? ?????
6H,12H-5,11-Dioxadibenzo[a,e]cyclooctene-6,12-dione
(5S)-6α,7β-Dimethyl-1,2,3,12-tetramethoxy-10,11-methylenedioxy(5,6,7,8-tetrahydrodibenzo[a,c]cyclooctene)-5α,6β-diol 5-benzoate
Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate
CYCLOOCTYL BROMIDE
2,2,6-Trimethyl-4H-1,3-dioxin-4-one
6,7,8,9,10,11-HEXAHYDRO-5H-CYCLOOCTA[B]INDOLE
CYCLOOCTENE OXIDE
1,2-EPOXY-5-CYCLOOCTENE
Chlorobis(cyclooctene)rhodium(I) dimer
Dibenzo[a,e]cyclooctene
5,6,11,12-Tetrahydrodibenzo[a,e]cyclooctene
1-METHYL-1-CYCLOOCTENE
cis-Cyclooctene oxide
1,2-Epoxy-7-cyclooctene
1-Cyclooctene-3-ol,Cyclooctene-3-ol