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Conditions | Yield |
---|---|
With N,N-bis[2-oxo-3-oxazolidinyl]phosphorodiamidic chloride; triethylamine In dichloromethane at 20℃; for 0.5h; | 99% |
With magnesium dimethacrylate; di-tert-butyl dicarbonate at 25℃; for 4h; Reagent/catalyst; | 99% |
With 10H-phenothiazine; trifluorormethanesulfonic acid; acetic anhydride at 95℃; Reagent/catalyst; Temperature; | 95% |
Conditions | Yield |
---|---|
With pyridine; 1,1,1-trichloro-3,3,3-trifluoro-propan-2-one; water In toluene for 0.5h; Ambient temperature; | 93% |
With sodium hydroxide; tetrabutylammomium bromide In dichloromethane at -10℃; for 3h; | 80% |
With sodium hydroxide; tetrabutyl-ammonium chloride In toluene at -10℃; for 3h; | 7% |
Conditions | Yield |
---|---|
With triethylamine In benzene at 70℃; | 92% |
Stage #1: Methacryloyl chloride With pyridine; hydroquinone In toluene Stage #2: poly(methacrylic acid) In toluene at 50 - 65℃; | 83% |
With triethylamine In benzene | |
With sodium hydroxide In water | |
With sodium hydroxide In water |
sodium methacrylate
chloroformic acid ethyl ester
A
methacryloyl anhydride
B
carboethoxymethacrylic anhydride
Conditions | Yield |
---|---|
With 4-methoxy-phenol; tetrabutylammomium bromide In H2O (water) < 309.3g; toluene 192g at 15℃; for 4h; | A n/a B 87.5% |
With 4-methoxy-phenol In water at 5 - 35℃; for 7 - 30h; | |
tributylphenylphosphonium chloride at 10℃; for 3h; |
sodium methacrylate
chloroformic acid ethyl ester
A
methacryloyl anhydride
B
carboethoxymethacrylic anhydride
C
Diethyl carbonate
Conditions | Yield |
---|---|
With 4-methoxy-phenol; tetrabutylammomium bromide In water at 20℃; for 3h; | A n/a B 80% C n/a |
tetrabutyl phosphonium bromide at 10℃; for 4.5h; | |
methyl(tri-n-octyl)ammonium bromide at 10℃; for 1.5h; |
2-methyladamantan-2-ol
A
2-methyl-2-adamantyl methacrylate
B
methacryloyl anhydride
Conditions | Yield |
---|---|
A 40% B n/a |
Conditions | Yield |
---|---|
With oxygen; silica gel; Te/Pd-containing-silica-supported catalyst In water; tert-butyl alcohol at 75℃; under 18001.8 - 36003.6 Torr; for 0.75h; Product distribution / selectivity; Autoclave; | A 34.2% B 17.5% |
Conditions | Yield |
---|---|
With copper (I) acetate |
poly(methacrylic acid)
benzoyl chloride
A
methacryloyl anhydride
B
benzoyl (meth)acrylate
C
benzoic acid anhydride
Conditions | Yield |
---|---|
With P4-VP In dichloromethane at 0℃; for 1h; Yield given. Yields of byproduct given; |
methacryloyl anhydride
Conditions | Yield |
---|---|
With thionyl chloride; Petroleum ether |
Product Name: Methacrylic anhydride (CAS NO.760-93-0)
MF: C8H10O3
MW: 154.16
Mol File: 760-93-0.mol
EINECS: 212-084-8
Surface Tension: 29 dyne/cm
Density: 1.021 g/ml
Flash Point: 84.4 °C
MP: -20°C
Enthalpy of Vaporization: 43.85 kJ/mol
Boiling Point: 202.3 °C at 760 mmHg
Vapour Pressure: 0.294 mmHg at 25°C
BRN: 1761982
Index of Refraction: 1.443
Molar Refractivity: 40.05 cm3
Molar Volume: 150.9 cm3
XLogP3-AA: 1.8
H-Bond Donor: 0
H-Bond Acceptor: 3
Structure Descriptors of Methacrylic anhydride (CAS NO.760-93-0):
IUPAC Name: 2-methylprop-2-enoyl 2-methylprop-2-enoate
Canonical SMILES: CC(=C)C(=O)OC(=O)C(=C)C
InChI: InChI=1S/C8H10O3/c1-5(2)7(9)11-8(10)6(3)4/h1,3H2,2,4H3
InChIKey: DCUFMVPCXCSVNP-UHFFFAOYSA-N
Product Categories: Organic acids; Carbonyl Compounds; Carboxylic Acid Anhydrides; Organic Building Blocks; Anhydride Monomers; Monomers; Polymer Science
Methacrylic anhydride (CAS NO.760-93-0) is used as light-curing coatings, cross-linked materials such as synthetic resin.
1. | ihl-mus LC50:450 mg/m3/2H | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,80. |
EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.
Poison by inhalation. A combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ANHYDRIDES.
Safety information of Methacrylic anhydride (CAS NO.760-93-0):
Hazard Codes: Xn
Risk Statements: 20-37/38-41
R20:Harmful by inhalation ;
R37/38:Irritating to respiratory system and skin ;
R41:Risk of serious damage to eyes ;
Safety Statements: 26-39
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice ;
S39:Wear eye/face protection ;
RIDADR: UN 3265 8/PG 2
WGK Germany: 1
RTECS: OZ5700000
F: 10-21
HazardClass: 8
PackingGroup: II
Methacrylic anhydride , its CAS NO. is 760-93-0, the synonyms are 1-Methylacrylic anhydride ; 2-Propenoicacid,2-methyl-,anhydride ; 2-Methyl-2-propenoicacianhydride ; Methacrylic acid anhydride ; Methacryloyl anhydride ; Methacrylicacidanhydride ; Methacryloylanhydride . Methacrylic anhydride (CAS NO.760-93-0) reacts exothermically with water. The reactions are sometimes slow, but can become violent when local heating accelerates their rate. Acids accelerate the reaction with water. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.