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| CAS No.: | 4746-97-8 |
|---|---|
| Name: | 1,4-Dioxaspiro[4.5]decan-8-one |
| Article Data: | 40 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H12O3 |
| Molecular Weight: | 156.181 |
| Synonyms: | 1,4-Cyclohexanedionecyclic ethylene monoketal;1,4-Cyclohexanedione mono(ethylene ketal);1,4-Cyclohexanedione, cyclic1,2-ethanediyl acetal;1,4-Dioxaspiro[4.5]decane-8-one;4-(Ethylenedioxy)cyclohexanone;Cyclohexane-1,4-dione mono(ethylene glycolketal);1,4-Cyclohexanedione mono-ethylene ketal;1,4-cyclohexanedione monoethylene acetal; |
| EINECS: | -0 |
| Density: | 1.16 g/cm3 |
| Melting Point: | 70-73 °C(lit.) |
| Boiling Point: | 268.3 °C at 760 mmHg |
| Flash Point: | 106.7 °C |
| Appearance: | off-white crystalline |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 22-24/25-36/37/39-26 |
| PSA: | 35.53000 |
| LogP: | 0.87260 |
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- 99170-93-1N-Methyl-2-oxazolamine
- 6289-46-9
dimethyl 2,5-dioxocyclohexane-1,4-dicarboxylate
- 107-21-1
ethylene glycol
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With 1-butyl-3-methylimidazolium hydrogen sulfate; water; 1-ethylimidazolium tetrafluoroborate at 110 - 132℃; for 5.5h; Temperature; Reagent/catalyst; | 97.8% |
| Conditions | Yield |
|---|---|
| With triethylmethylammonium chloride at 50℃; for 1h; Temperature; Reagent/catalyst; | 96% |
| With toluene-4-sulfonic acid In benzene at 100℃; for 1.5h; | 35% |
| With toluene-4-sulfonic acid In benzene for 4h; Heating; |
- 64554-48-9
Bis<1,4-dioxaspiro<4.5>decan-8-yliden>hydrazin
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With HOF* CH3CN In dichloromethane at 0℃; for 0.0166667h; | 95% |
- 67-51-6
3,5-dimethyl-1H-pyrazole
A
- 4746-97-8
cyclohexanedione monoethylene ketal
B
- 637-88-7
1,4-Cyclohexanedione
| Conditions | Yield |
|---|---|
| In dichloromethane; ethyl acetate | A 91% B n/a |
- 35357-34-7
1,4-dioxaspiro[4.5]deca-6,9-dien-8-one
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With hydrogen; N-ethyl-N,N-diisopropylamine; 1% Pd/C In 2-methyltetrahydrofuran at 30℃; under 75007.5 Torr; Autoclave; | 91% |
- 22428-87-1
4,4-ethylenedioxycyclohexan-1-ol
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With Oxone; sodium ortho-iodobenzenesulfonate; sodium sulfate In ethyl acetate at 70℃; for 8h; Inert atmosphere; | 86% |
| With potassium peroxymonosulfate; sodium ortho-iodobenzenesulfonate; sodium sulfate In ethyl acetate at 70℃; for 8h; | 86% |
| With pyridine; chromium(VI) oxide | |
| With tert.-butylhydroperoxide; Cs5V14As8O42Cl In water; acetone at 20℃; for 48h; | 20 %Chromat. |
| With tert.-butylhydroperoxide; Cs5V14As8O42Cl In water; acetone at 20℃; for 48h; Sealed tube; |
| Conditions | Yield |
|---|---|
| With formaldehyd; silica gel; iron(III) chloride In water for 1h; Ring cleavage; | 86% |
| With water In acetic acid; trifluoroacetic acid at 45℃; for 14h; |
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With periodic acid In tetrahydrofuran; diethyl ether at -10℃; for 0.333333h; | 86% |
- 98253-09-9
8-Methylsulfanyl-8-(toluene-4-sulfonyl)-1,4-dioxa-spiro[4.5]decane
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With sodium hydrogencarbonate In 1,4-dioxane; water Irradiation; | 83% |
- 14160-65-7, 77793-24-9, 122090-88-4
ethyl 8-oxo-1,4-dioxaspiro[4.5]decane-7-carboxylate
- 4746-97-8
cyclohexanedione monoethylene ketal
| Conditions | Yield |
|---|---|
| With potassium hydroxide In water for 6h; Ambient temperature; | 80% |
| With magnesium chloride In N,N,N,N,N,N-hexamethylphosphoric triamide at 150℃; for 2h; | 92 % Chromat. |
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Chemistry
The Molecular Structure of 1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8):
Empirical Formula: C8H12O3
Molecular Weight: 156.1791
IUPAC Name: 1,4-dioxaspiro[4.5]decan-8-one
Appearance: white to beige crystalline powder or crystals
Product Categories: blocks;BuildingBlocks;Liquid Crystal intermediates;Carbonyl Compounds;Heterocycles;ketone;Dioxanes & Dioxolanes;Dioxolanes
Nominal Mass: 156 Da
Average Mass: 156.1791 Da
Monoisotopic Mass: 156.078644 Da
Index of Refraction: 1.489
Molar Refractivity: 38.6 cm3
Molar Volume: 133.6 cm3
Surface Tension: 38.7 dyne/cm
Density: 1.16 g/cm3
Flash Point: 106.7 °C
Enthalpy of Vaporization: 50.64 kJ/mol
Boiling Point: 268.3 °C at 760 mmHg
Vapour Pressure: 0.00776 mmHg at 25°C
Uses
1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8) can be used as intermediates of liquid crystals.
Toxicity Data With Reference
1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8) is irritating to eyes、respiratory system and skin.
Safety Profile
In case of contact 1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8) with eyes, rinse immediately with plenty of water and seek medical advice. Do not breathe the dust of 1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8). Besides,when use 1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8),wear suitable and suitable gloves.
Xi
Risk Statements: 36/37/38
R36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 22-24/25-36/37/39-26
S22: Do not breathe dust
S24/25: Avoid contact with skin and eyes
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
WGK Germany: 3
F: 8-10-21
Hazard Note: Irritant
Specification
1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8) is also called as 1,4-Cyclohexanedione monoethylene acetal ; 1,4-Cyclohexanedione monoethylene ketal ; 1,4-Dioxaspiro[4.5]decan-8-one ; 1,4-Dioxaspiro[4.5]-8-decanone ; cyclohexanedione(1,4-) monoethylene ; Cyclohexane-1,4-dione monoethylene ketal ; 1,4-Cyclohexanedion monoethylene acetal ; 1,4-Dioxiro[4.5]decan-8-one .