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Ethyl 2-methylacetoacetate

Ethyl 2-methylacetoacetate structure

CAS No:
609-14-3
Formula:
C7H12O3
Chemical Name:
Ethyl 2-methylacetoacetate
Synonyms:
Butanoic acid,2-methyl-3-oxo-,ethyl ester;Acetoacetic acid,2-methyl-,ethyl ester;Acetoacetic acid,α-methyl-,ethyl ester;Ethyl 2-methylacetoacetate;Ethyl α-methylacetylacetate;2-Methylacetoacetic acid ethyl ester;Ethyl α-methylacetoacetate;Ethyl 2-methyl-3-oxobutyrate;Ethyl α-acetylpropionate;α-Methylacetoacetic ester;Ethyl 2-methyl-3-oxobutanoate;Ethyl 2-acetylpropionate;Ethyl methylacetoacetate;Ethyl (±)-2-methylacetoacetate;Ethyl 2-acetylpropanoate;2-Methyl-3-oxobutanoic acid ethyl ester;NSC 1102;2-Methyl-3-oxobutyric acid ethyl ester;Ethyl 3-oxo-2-methylbutanoate;64854-05-3
Categories:
Agrochemicals > Pesticide Intermediates

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Description

clear colorless to yellow liquid

Ethyl 2-methylacetoacetate Basic Attributes

Molecular Weight：

144.17

Exact Mass：

144.17

BRN：

1071742

EC Number：

210-179-9

NSC Number：

1102

DSSTox ID：

DTXSID2033493

HScode：

29182300

Characteristics

PSA：

43.4

XLogP3：

0.9

Appearance：

Clear colorless to yellow Liquid

Density：

1.00150 g/cm³ @ Temp: 420 °C

Melting Point：

235-236 °C

Boiling Point：

187 °C

Flash Point：

145 °F

Refractive Index：

1.417-1.419

Water Solubility：

H2O: IMMISCIBLE

Storage Conditions：

-20°C Freezer

Safety Information

Transport codes：

1993

wgk germany：

safety instructions：

24/25

Stability/Shelf Life：

Stable under normal temperatures and pressures.

Precautionary statement(s)：

P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501

Hazard Statements：

H315

GHS Classification：

|Warning|H315 (66.67%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 3 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

ethyl 2-methyl-3-oxobutanoate

Ethyl 2-methylacetoacetate Use and Manufacturing

Methods of Manufacturing

α-Methyl acetoacetate is prepared by reacting ethyl acetoacetate with dimethyl sulfate. Add xylene, ethyl acetoacetate, dimethyl sulfate and phase transfer catalyst in advance to the glass-lined reactor, stir, slowly add sodium hydroxide solution, control the reaction temperature not to exceed 40 ℃, continue to stir for 1.5 hours after the addition, Control pH=8-9, then stand still for 1 hour, separate the water layer, add water to wash until the aqueous solution is neutral, stand still, separate the water layer (send the three wastes for treatment), the xylene solution is dehydrated under reduced pressure and concentrated to contain lactate When the content of ethyl acetoacetate is 35%-40%, the concentration can be stopped to obtain ethyl lactate methyl acetoacetate xylene solution, and then the product can be obtained by desolventizing. α-Methyl acetoacetate can also be prepared from ethyl acetoacetate, potassium carbonate and methyl iodide in a solid-liquid phase hydrocarbonification reaction under certain conditions.

Uses

Used as intermediate for medicine and pesticide

Manufacturing Info：

Butanoic acid, 2-methyl-3-oxo-, ethyl ester: ACTIVE

Computed Properties

Molecular Weight:144.17
XLogP3:0.9
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:4
Exact Mass:144.078644241
Monoisotopic Mass:144.078644241
Topological Polar Surface Area:43.4
Heavy Atom Count:10
Complexity:140
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Ethyl propionate

Sodium hydroxide

Ethyl acetate

Dimethyl sulfate

Recommended Suppliers of Ethyl 2-methylacetoacetate

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Ethyl 2-methylacetoacetate

CAS No.: 609-14-3

Content: 99.00%

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Guide of Ethyl 2-methylacetoacetate

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
Latest News
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Ethyl 2-methylacetoacetate

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