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1,4-Dioxaspiro[4.5]decan-8-one
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Name

1,4-Dioxaspiro[4.5]decan-8-one

 EINECS -0
CAS No. 4746-97-8 Density 1.16 g/cm3
PSA 35.53000 LogP 0.87260
Solubility N/A Melting Point 70-73 °C(lit.)
Formula C8H12O3 Boiling Point 268.3 °C at 760 mmHg
Molecular Weight 156.181 Flash Point 106.7 °C
Transport Information N/A Appearance off-white crystalline
Safety 22-24/25-36/37/39-26 Risk Codes 36/37/38
Molecular Structure Molecular Structure of 4746-97-8 (1,4-Dioxaspiro[4.5]decan-8-one) Hazard Symbols IrritantXi
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;

Article Data 40

1,4-Dioxaspiro[4.5]decan-8-one Synthetic route

6289-46-9

dimethyl 2,5-dioxocyclohexane-1,4-dicarboxylate

107-21-1

ethylene glycol

4746-97-8

cyclohexanedione monoethylene ketal

Conditions
ConditionsYield
With 1-butyl-3-methylimidazolium hydrogen sulfate; water; 1-ethylimidazolium tetrafluoroborate at 110 - 132℃; for 5.5h; Temperature; Reagent/catalyst;97.8%
107-21-1

ethylene glycol

637-88-7

1,4-Cyclohexanedione

4746-97-8

cyclohexanedione monoethylene ketal

Conditions
ConditionsYield
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
ConditionsYield
With HOF* CH3CN In dichloromethane at 0℃; for 0.0166667h;95%
67-51-6

3,5-dimethyl-1H-pyrazole

4-hydroxycyclohexane mono-ketal

4-hydroxycyclohexane mono-ketal

A

4746-97-8

cyclohexanedione monoethylene ketal

B

637-88-7

1,4-Cyclohexanedione

Conditions
ConditionsYield
In dichloromethane; ethyl acetateA 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
ConditionsYield
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
ConditionsYield
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;
183-97-1

1,4,9,12-Tetraoxa-dispiro[4.2.4.2]tetradecane

4746-97-8

cyclohexanedione monoethylene ketal

Conditions
ConditionsYield
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;

1,4-Dioxa-9,13-dithia-dispiro[4.2.5.2]pentadecane

4746-97-8

cyclohexanedione monoethylene ketal

Conditions
ConditionsYield
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
ConditionsYield
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
ConditionsYield
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.

1,4-Dioxaspiro[4.5]decan-8-one Chemical Properties

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

1,4-Dioxaspiro[4.5]decan-8-one Uses

 1,4-Dioxaspiro[4.5]decan-8-one (CAS NO.4746-97-8) can be used as intermediates of liquid crystals.

1,4-Dioxaspiro[4.5]decan-8-one 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.

1,4-Dioxaspiro[4.5]decan-8-one 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.

Hazard Codes: IrritantXi
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

1,4-Dioxaspiro[4.5]decan-8-one 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 .

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