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37830-90-3

Basic Information
CAS No.: 37830-90-3
Name: 1,3-Dioxol-2-one,4,5-dimethyl-
Article Data: 13
Cas Database
Molecular Structure:
Molecular Structure of 37830-90-3 (1,3-Dioxol-2-one,4,5-dimethyl-)
Formula: C5H6O3
Molecular Weight: 114.101
Synonyms: 4,5-Dimethyl-2-oxo-1,3-dioxolene;4,5-Dimethyldioxol-2-one;Dimethylvinylene carbonate;4,5-Dimethyl-1,3-dioxolen-2-one;
EINECS: 678-111-4
Density: 1.181 g/cm3
Melting Point: 78 °C
Boiling Point: 117 °C at 760 mmHg
Flash Point: 55.8 °C
Solubility: N/A
Appearance: white powder
Hazard Symbols: N/A
Risk Codes: 36/37/38
Safety: 26-36/37/39
Transport Information: N/A
PSA: 43.35000
LogP: 0.84960
Synthetic route

trans-4,5-dichloro-4,5-dimethyl-1,3-dioxolan-2-one

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
With acetic anhydride; zinc In toluene at 30 - 80℃; for 6h; Catalytic behavior; Reagent/catalyst; Temperature; Solvent;83%
124-38-9

carbon dioxide

513-86-0, 52217-02-4

3-hydroxy-2-butanon

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
Stage #1: carbon dioxide; 3-hydroxy-2-butanon With sodium carbonate; potassium hydrogencarbonate at 28 - 32℃; for 5h; Autoclave; Large scale; Green chemistry;
Stage #2: With potassium methanolate; sodium ethanolate at 38 - 42℃; under 26252.6 Torr; Temperature; Reagent/catalyst; Pressure; Large scale; Green chemistry;
80.7%
75-44-5

phosgene

513-86-0, 52217-02-4

3-hydroxy-2-butanon

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
In dichloromethane; N,N-dimethyl-aniline; toluene55%
In dichloromethane; N,N-dimethyl-aniline3.53 g (25%)
32315-10-9

bis(trichloromethyl) carbonate

513-86-0, 52217-02-4

3-hydroxy-2-butanon

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
Stage #1: bis(trichloromethyl) carbonate; 3-hydroxy-2-butanon With N,N-dimethyl-aniline In dichloromethane at 20℃; for 2h;
Stage #2: at 160℃; for 4h;
42%

C5H7ClO3

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
at 160℃; for 4h;
513-86-0, 52217-02-4

3-hydroxy-2-butanon

79-22-1

methyl chloroformate

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
In N,N-dimethyl-aniline at 15℃; for 5.5h; Temperature;450 g
513-86-0, 52217-02-4

3-hydroxy-2-butanon

541-41-3

chloroformic acid ethyl ester

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
In dichloromethane; N,N-dimethyl-aniline at 12℃; for 6h; Temperature; Solvent;850 g
513-86-0, 52217-02-4

3-hydroxy-2-butanon

109-61-5

propoxycarbonyl chloride

37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

Conditions
ConditionsYield
In dichloromethane; N,N-dimethyl-aniline at 20℃; for 0.5h; Temperature; Solvent;190 g
37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

80715-22-6

4-bromomethyl-1,3-dioxa-5-methylcyclopentene-2-one

Conditions
ConditionsYield
With N-Bromosuccinimide In chloroform Reflux; Large scale;93.8%
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane at 77℃; for 6h;92%
With bromine; pyridine hydrochloride-aluminum trichloride In acetone for 1.66667h; Reagent/catalyst; Wavelength; Solvent; Microwave irradiation;92%
37830-90-3

4,5-Dimethyl-1,3-dioxole-2-one

a,a-azobisisobutyronitrile (AIBN)

a,a-azobisisobutyronitrile (AIBN)

80715-22-6

4-bromomethyl-1,3-dioxa-5-methylcyclopentene-2-one

Conditions
ConditionsYield
With N-Bromosuccinimide In tetrachloromethane90%
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    Dimethyldioxolone

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  • 1,3-Dioxol-2-one,4,5-dimethyl- CAS 37830-90-3

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    1,3-Dioxol-2-one,4,5-dimethyl- CAS 37830-90-3

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Specification

The 4,5-Dimethyl-1,3-dioxol-2-one, with the CAS registry number 37830-90-3, is also known as 1,3-Dioxol-2-one,4,5-dimethyl-. It belongs to the product categories of Oxygen Cyclic Compounds; Fluorobenzene; Agricultural Chemicals(bactericide); Pharmaceutical Intermediates. This chemical's molecular formula is C5H6O3 and molecular weight is 114.09934. Its IUPAC name is called 4,5-dimethyl-1,3-dioxol-2-one. What's more, this chemical  is used as an intermediates of the Antihypertensive drugs-Olmesartan medoxomil.

Physical properties of 4,5-Dimethyl-1,3-dioxol-2-one: (1)ACD/LogP: 1.45; (2)ACD/LogD (pH 5.5): 1.45; (3)ACD/LogD (pH 7.4): 1.45; (4)ACD/BCF (pH 5.5): 7.5; (5)ACD/BCF (pH 7.4): 7.5; (6)ACD/KOC (pH 5.5): 147.2; (7)ACD/KOC (pH 7.4): 147.2; (8)#H bond acceptors: 3; (9)Index of Refraction: 1.454; (10)Molar Refractivity: 26.18 cm3; (11)Molar Volume: 96.5 cm3; (12)Surface Tension: 30.3 dyne/cm; (13)Density: 1.181 g/cm3; (14)Flash Point: 55.8 °C; (15)Enthalpy of Vaporization: 35.53 kJ/mol; (16)Boiling Point: 117 °C at 760 mmHg; (17)Vapour Pressure: 17.8 mmHg at 25°C.

Preparation 4,5-Dimethyl-1,3-dioxol-2-one: this chemical can be prepared by 3-hydroxy-butan-2-one and carbonic acid bis-trichloromethyl ester. This reaction will need reagent N,N-dimethylaniline and solvent CH2Cl2. The yield is about 42%.

4,5-Dimethyl-1,3-dioxol-2-one can be prepared by 3-hydroxy-butan-2-one and carbonic acid bis-trichloromethyl ester

Uses of 4,5-Dimethyl-1,3-dioxol-2-one: it can be used to produce 4-chloro-4-methyl-5-methylene-1,3-dioxolan-2-one by heating. This reaction will need reagent sulfuryl chloride and solvent CH2Cl2 with reaction time of 30 min. The yield is about 75%.

4,5-Dimethyl-1,3-dioxol-2-one can be used to produce 4-chloro-4-methyl-5-methylene-1,3-dioxolan-2-one by heating

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CC1=C(OC(=O)O1)C
(2)InChI: InChI=1S/C5H6O3/c1-3-4(2)8-5(6)7-3/h1-2H3
(3)InChIKey: QYIOFABFKUOIBV-UHFFFAOYSA-N