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3,3-Dimethyl acrylic acid

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Name

3,3-Dimethyl acrylic acid

EINECS 208-782-7
CAS No. 541-47-9 Density 1.01 g/cm3
PSA 37.30000 LogP 1.03720
Solubility Soluble in most organic solvents Melting Point 65-70 °C(lit.)
Formula C5H8O2 Boiling Point 194.5 °C at 760 mmHg
Molecular Weight 100.117 Flash Point 96 °C
Transport Information UN 3261 Appearance White prism-shape crystals
Safety 26-36/37/39-45-27 Risk Codes 37/38-41-34
Molecular Structure Molecular Structure of 541-47-9 (3,3-Dimethylacrylic acid) Hazard Symbols IrritantXi,CorrosiveC
Synonyms

3-Methylbut-2-enoic acid;3-Methyl-2-butenoic acid;3-Methylcrotonic acid;Senecioic acid;beta,beta-Dimethylacrylic acid;beta-Methylcrotonic acid;Crotonic acid, 3-methyl-;

Article Data 154

3,3-Dimethyl acrylic acid Synthetic route

3-Benzenesulfinyl-3-methyl-butyric acid

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
In various solvent(s) for 0.0166667h; Irradiation;99%
107-86-8

3,3-dimethyl acrylaldehyde

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
With 4H3N*4H(1+)*CuMo6O18(OH)6(4-); water; oxygen; sodium carbonate at 50℃; under 760.051 Torr; for 12h;98%
With copper acetylacetonate; oxygen; sodium hydroxide; 1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene In water at 50℃; under 760.051 Torr; for 12h; Sealed tube;91%
With Iron(III) nitrate nonahydrate; oxygen; sodium 2,2,2-trifluoroacetate In ethyl acetate at 25℃; under 760.051 Torr; for 16h;38%
34450-60-7

(Z)-3-iodobut-2-enoic acid

75-16-1

methylmagnesium bromide

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
Stage #1: methylmagnesium bromide With zinc dibromide In diethyl ether at 25℃;
Stage #2: (Z)-3-iodobut-2-enoic acid; dichloro bis(acetonitrile) palladium(II) In tetrahydrofuran; diethyl ether; N,N-dimethyl-formamide at 25℃; for 12h;
95%
201230-82-2

carbon monoxide

513-42-8

3-hydroxy-2-methyl-1-propene

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
1,4-di(diphenylphosphino)-butane; bis(dibenzylideneacetone)-palladium(0) In 1,2-dimethoxyethane at 190℃; under 30400 Torr; for 48h;92%
556-82-1

3-methyl-2-buten-1-ol

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
With potassium phosphate; carbon dioxide; CrH6Mo6O24(3-)*3H3N*3H(1+) In dimethyl sulfoxide at 80℃; under 750.075 Torr; for 24h; Green chemistry;89%
Multi-step reaction with 2 steps
1: 1-hydroxy-1,2-benziodoxole-3(1H)-one-1-oxide / dimethylsulfoxide / 16 h / 20 °C
2: NaOH; H2O / dimethylsulfoxide
View Scheme
556-82-1

3-methyl-2-buten-1-ol

A

541-47-9

3-Methylbutenoic acid

B

107-86-8

3,3-dimethyl acrylaldehyde

Conditions
ConditionsYield
With 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium acetate; 4,7-di-(NaSO3Ph)-[1.10]phenanthroline-Pd(OAc)2 In water at 100℃; under 22502.3 Torr; for 10h; pH=6.5 - 11.5;A n/a
B 88%
With 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; oxygen; titanium(IV) oxide In benzotrifluoride under 750.075 Torr; for 8h; Irradiation;
With oxygen In water at 20℃; under 760.051 Torr; for 336h; pH=6.5 - 7;
concentrated sodium bisulfite

concentrated sodium bisulfite

141-79-7

4-methyl-pent-3-en-2-one

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
With sodium hypochlorite In chloroform; water80%
625-08-1

3-Hydroxy-3-methylbutyric acid

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
With toluene-4-sulfonic acid at 100 - 110℃; for 1h;76%
With sulfuric acid
With sulfuric acid durch Destillation;
3017-69-4

2-methyl-1-propenylbromide

124-38-9

carbon dioxide

541-47-9

3-Methylbutenoic acid

Conditions
ConditionsYield
With (2,2'-bipyridine)nickel(II) dibromide; tetrabutylammonium tetrafluoroborate In N,N-dimethyl-formamide at -10℃; electrolysis with 3 F/mol at 10 mA/cm2; Pt cathode; Mg anode;64%
With tetrabutylammonium tetrafluoroborate; (2,2'-bipyridine)nickel(II) dibromide In N,N-dimethyl-formamide at -10℃; Product distribution; electrolysis with 3 F/mol at 10 mA/cm2; Pt cathode, Mg anode; without/with catalyst;64%

dimethyl 6-hydroxy-11-(1-methylethylidene)-9,10-dioxa-4,5-diazatricyclo[6.2.1.02,7]undec-3-ene-3,6-dicarboxylate

A

541-47-9

3-Methylbutenoic acid

B

2166-24-7

pyridazine-3,6-dicarboxylic acid dimethyl ester

Conditions
ConditionsYield
With bis-[(trifluoroacetoxy)iodo]benzene In chloroform at -40 - 20℃;A 57%
B n/a

3,3-Dimethyl acrylic acid Consensus Reports

Reported in EPA TSCA Inventory.

3,3-Dimethyl acrylic acid Specification

The 2-Butenoic acid,3-methyl-, with the CAS registry number 541-47-9, is also known as Senecioic acid. It belongs to the product category of Organic acids. Its EINECS number is 208-782-7. This chemical's molecular formula is C5H8O2 and molecular weight is 100.12. What's more, its systematic name is 3-methylbut-2-enoic acid. Its classification code is Skin / Eye Irritant. It should be sealed and stored in a cool, ventilated and dry place. Moreover, it should be protected from oxides, heat and fire. It exists in flue-cured tobacco and flue gas. It is used as organic intermediates.

Physical properties of 2-Butenoic acid,3-methyl- are: (1)ACD/LogP: 2.95; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.03; (4)ACD/LogD (pH 7.4): 1.26; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 2.08; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 19.45; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 6; (12)Polar Surface Area: 23.55 Å2; (13)Index of Refraction: 1.564; (14)Molar Refractivity: 90.18 cm3; (15)Molar Volume: 277.1 cm3; (16)Polarizability: 35.75×10-24cm3; (17)Surface Tension: 42.1 dyne/cm; (18)Density: 1.069 g/cm3; (19)Flash Point: 236.6 °C; (20)Enthalpy of Vaporization: 72.97 kJ/mol; (21)Boiling Point: 467.7 °C at 760 mmHg; (22)Vapour Pressure: 6.38E-09 mmHg at 25°C.

Preparation: this chemical can be prepared by 4-methyl-pent-3-en-2-one at the temperature of 77 °C. This reaction will need reagent LiOCl/Clorox and solvent ethanol with the reaction time of 8 hours. The yield is about 56%.

2-Butenoic acid,3-methyl- can be prepared by 4-methyl-pent-3-en-2-one at the temperature of 77 °C

Uses of 2-Butenoic acid,3-methyl-: it can be used to produce 3-methyl-crotonic acid-anhydride at the temperature of 20 °C. It will need reagents N(C2H5)3, N,N-bis(2-oxo-3-oxazolidinyl)phosphorodiamidic chloride and solvent CH2Cl2 with the reaction time of 30 min. The yield is about 98%.

2-Butenoic acid,3-methyl- can be used to produce 3-methyl-crotonic acid-anhydride at the temperature of 20 °C

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to respiratory system and skin. It can cause burns and has a risk of serious damage to eyes. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. You must take off immediately all contaminated clothing. When using it, you need wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, you need seek medical advice immediately (show the label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)\C=C(/C)C
(2)Std. InChI: InChI=1S/C5H8O2/c1-4(2)3-5(6)7/h3H,1-2H3,(H,6,7)
(3)Std. InChIKey: YYPNJNDODFVZLE-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 oral 3gm/kg (3000mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(4), Pg. 52, 1985.
mouse LD50 oral 2580mg/kg (2580mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 29(4), Pg. 52, 1985.
rabbit LD50 skin > 3200mg/kg (3200mg/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.
rat LD50 oral 3560mg/kg (3560mg/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.

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