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Name	Methyl 3-methyl-2-butenoate	EINECS	213-107-4
CAS No.	924-50-5	Density	0.916 g/cm³
PSA	26.30000	LogP	1.12560
Solubility	Soluble in chloroform. Insoluble in water,	Melting Point	-41°C
Formula	C₆H₁₀O₂	Boiling Point	136.5 °C at 760 mmHg
Molecular Weight	114.144	Flash Point	32.1 °C
Transport Information	UN 3272 3/PG 3	Appearance	colorless transparent liquid
Safety	16-29-33	Risk Codes	10
Molecular Structure		Hazard Symbols	Xi
Synonyms	Methyl 3,3-dimethylacrylate	Article Data	68

Methyl 3-methyl-2-butenoate Synthetic route

: 67-56-1
methanol

: 541-47-9
3-Methylbutenoic acid

: 924-50-5
Methyl 3,3-dimethylacrylate

Conditions

Conditions	Yield
With [1-(3-sulfonic acid)]propyl-3-methylimidazolium hydrogen sulfate for 3h; Reflux; Green chemistry;	97.8%
With sulfuric acid	95%
With sulfuric acid for 16h; Heating;	92%

: 105245-42-9
tert-butyl(1-methoxyvinyl)dimethylsilane

: 67-64-1
acetone

: 924-50-5
Methyl 3,3-dimethylacrylate

Conditions

Conditions	Yield
Stage #1: tert-butyl(1-methoxyvinyl)dimethylsilane; acetone With C40H61Al3O3 In acetonitrile at 0 - 5℃; for 72h; Mukaiyama Aldol Addition; Stage #2: With hydrogenchloride In water; acetonitrile at 20℃; for 3h; Mukaiyama Aldol Addition;	90%

: 67-56-1
methanol

: 135765-56-9
C9H18ClNO3

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 82004-48-6
β-(N-methoxy-N-isopropoxyamino)-isovaleric acid methyl ester

Conditions

Conditions	Yield
With triethylamine 1.) -20 deg C, 6 h, 2.) 20 deg C, 1 h;	A 14% B 86%

: 27652-13-7, 50465-52-6, 19041-17-9
(E)-4-bromo-3-methyl-2-butenoic acid methyl ester

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 91664-11-8
(E)-5-Isopropenyl-3-methyl-hex-2-enedioic acid dimethyl ester

Conditions

Conditions	Yield
With zinc In dimethyl sulfoxide for 4h;	A 10% B 68%

: 27652-13-7
(Z)-methyl-β-bromomethyl-β-methylacrylate

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 91664-12-9
(Z)-5-Isopropenyl-3-methyl-hex-2-enedioic acid dimethyl ester

Conditions

Conditions	Yield
With zinc In dimethyl sulfoxide for 4h;	A 10% B 67%

: 70569-70-9
β-(N-chloro-N-methoxyamino)-isovaleric acid methyl ester

: 115-11-7
isobutene

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 135765-48-9
β-isovaleric acid methyl ester

Conditions

Conditions	Yield
With sulfur dioxide 1.) 7 deg C, 24 h, 2.) 20 deg C, 2 h;	A 13% B 67%

: 76430-13-2
2,2,3,3-tetracyano-4,4-dimethylcyclopentanone dimethyl acetal

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 76430-21-2
methyl 3,3-dimethyl-4,5,5-tricyano-4-pentenoate

C: 76430-18-7
methyl 3,3-dimethyl-4,4,5,5-tetracyanopentanoate

Conditions

Conditions	Yield
With water In acetonitrile at 80℃; for 12h;	A n/a B n/a C 63%

: 101146-22-9
(2-Trifluoromethanesulfonyl-pentane-2-sulfonyl)-acetic acid methyl ester

: 924-50-5
Methyl 3,3-dimethylacrylate

Conditions

Conditions	Yield
With sodium hydroxide; tetra(n-butyl)ammonium hydrogensulfate In dichloromethane; water	62%

: 70569-71-0
β-(N,N-dimethoxyamino)-isovaleric acid methyl ester

A: 924-50-5
Methyl 3,3-dimethylacrylate

B: 80552-91-6
3-(2-Methoxycarbonyl-1,1-dimethyl-ethyl-NNO-azoxy)-3-methyl-butyric acid methyl ester

Conditions

Conditions	Yield
With triethylamine hydrochloride In chloroform for 126h; Product distribution; Heating; various acyclic N,N-dialkoxyamines;	A 15% B 51.9%

: 63282-42-8
methyl 2-diazo-3-methylbutanoate

: 924-50-5
Methyl 3,3-dimethylacrylate

Conditions

Conditions	Yield
at 400℃; under 0.001 - 0.1 Torr;	47%

Methyl 3-methyl-2-butenoate Chemical Properties

Molecular Structure of Methyl 3-methyl-2-butenoate (CAS NO.924-50-5):

IUPAC Name: methyl 3-methylbut-2-enoate
Empirical Formula: _C6H₁₀O₂
Molecular Weight: 114.1424
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 2
Polar Surface Area: 26.3Å²
Index of Refraction: 1.42
Molar Refractivity: 31.52 cm³
Molar Volume: 124.4 cm³
Surface Tension: 25.2 dyne/cm
Density: 0.916 g/cm³
Flash Point: 32.1 °C
Enthalpy of Vaporization: 37.39 kJ/mol
Boiling Point: 136.5 °C at 760 mmHg
Vapour Pressure: 7.36 mmHg at 25°C
Melting point: -41°C
InChI
InChI=1/C6H10O2/c1-5(2)4-6(7)8-3/h4H,1-3H3
Smiles
C(\C=C(\C)C)(OC)=O
EINECS: 213-107-4
Product Categories: (intermediate of Gancyclovir)

Methyl 3-methyl-2-butenoate Safety Profile

Hazard Codes: Irritant Xi
Risk Statements: 10
R10:Flammable.
Safety Statements: 16-29-33
S16:Keep away from sources of ignition.
S29:Do not empty into drains.
S33:Take precautionary measures against static discharges.
RIDADR: UN 3272 3/PG 3
WGK Germany: 1
F: 8
Hazard Note: Irritant
HazardClass: 3
PackingGroup: III

Methyl 3-methyl-2-butenoate Specification

Methyl 3-methyl-2-butenoate , with CAS number of 924-50-5, can be called Senecioic acid, methyl ester (6CI) ; 3-Methyl-2-butenoic acid methyl ester ; 3-Methylcrotonic acid methyl ester ; Methyl 3,3-dimethacrylate ; Methyl 3,3-dimethylacrylate ; Methyl b,b-dimethylacrylate .

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