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CAS No.: | 563-78-0 |
---|---|
Name: | 2,3-Dimethyl-1-butene |
Article Data: | 174 |
Molecular Structure: | |
Formula: | C6H12 |
Molecular Weight: | 84.1613 |
Synonyms: | 1-Isopropyl-1-methylethylene;2,3-Dimethyl-1-butene;2-Isopropylpropene;NSC 73906; |
EINECS: | 209-262-2 |
Density: | 0.685 g/cm3 |
Melting Point: | -157 °C |
Boiling Point: | 55.8 °C at 760 mmHg |
Flash Point: | ?1°F |
Solubility: | <0.1 g/L (20 °C ) |
Appearance: | Clear colourless to light yellow liquid |
Hazard Symbols: | F,Xn |
Risk Codes: | 11-65 |
Safety: | 16-33-62-9 |
Transport Information: | UN 3295 3/PG 2 |
PSA: | 0.00000 |
LogP: | 2.21850 |
propene
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
With diethyl aluminiumcholoride; trioctyl phosphite In toluene at -10℃; under 1500.15 Torr; for 5h; Reagent/catalyst; Temperature; Inert atmosphere; Autoclave; | 90% |
With In toluene at 70℃; for 50h; | 9% |
With In benzene-d6 at 49℃; Rate constant; | |
With (C6H5O)2P-N(C4H9)2; diethylaluminium chloride; Ni(β-C10H7CO2)2 In toluene at 18 - 23℃; under 750.06 Torr; Product distribution; influence of organophosphorus ligand L on the activity and selectivity of catalytic systems; | |
With C30H38FeN3 In benzene-d6 at 23℃; for 48h; Diels-Alder Cycloaddition; |
propene
A
2-Methyl-1-pentene
B
(Z)-4-methyl-2-pentene
C
4-Methyl-1-pentene
D
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
With ethylaluminum dichloride; π-C3H5NiP(C6H11-cyclo)3Br In chlorobenzene at -75 - -45℃; for 0.5h; Product distribution; | A 4% B 1% C 18% D 76% |
With VCl3((C5H3N)(C(CH3)N(C6H2)Br2Me)2) In toluene at 20℃; for 1h; | |
VCl3((C5H3N)(C(CH3)N(C6H2)Br2Me)2) In toluene at 20℃; for 1h; | A 6 %Chromat. B 45 %Chromat. C 24 %Chromat. D 25 %Chromat. |
propene
A
2,3-Dimethyl-2-butene
B
2-methyl-2-pentene
C
2-Methyl-1-pentene
D
4-methyl-2-pentene
E
4-Methyl-1-pentene
F
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
diethylaluminium chloride In benzene at 50℃; under 6840 Torr; for 2h; Product distribution; 0 - 60 deg C, 1 - 32 h, influence of the catalysts on the yields; | A 5.4% B 3.2% C 18.4% D 58.2% E 10.2% F 2.1% G n/a |
2,3-dimethyl-buta-1,3-diene
A
2,3-Dimethyl-2-butene
B
2,3-dimethylbutane
C
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
With hydrogen; palladium dichloride In N,N-dimethyl-formamide under 18751.5 Torr; for 0.25h; Product distribution; Ambient temperature; various time; | A 39.3% B 0.05% C 52.2% |
With hydrogen; 1,5-hexadienerhodium(I)-chloride dimer In various solvent(s) for 2h; Ambient temperature; pH=7.6; | A 27% B 25% C 22% |
With bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate; hydrogen; disodium salt of the bis(m-sulfonatophenyl)-n-butylphosphane at 60℃; under 22502.3 Torr; for 6h; Ionic liquid; chemoselective reaction; |
tantalum(η5-Cp)(2,3-dimethylbutadiene){C5H6O(isopropyl)2}
A
2,3-Dimethyl-2-butene
B
2-methyl-3-isopropyl-6-hepten-3-ol
C
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
Hydrolysis of starting compd.; Gas chromy.; | A 35% B 48% C 17% |
2,3-dimethyl-buta-1,3-diene
A
1,4-diphenyl-2,3-dimethylbutadiene-1,3
B
1,4-Dihydro-2,3-dimethylnaphthalene
G
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
In benzene at 120℃; for 16h; | A n/a B n/a C 30% D n/a E 20% F 45% G n/a |
ethanol
2,3,4,5,6-Pentamethyl-benzenesulfonic acid 1,2,2-trimethyl-3-trimethylsilanyl-propyl ester
A
tert-butylethylene
B
(2,3-Dimethyl-but-3-enyl)-trimethyl-silane
E
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
With water at 25℃; Rate constant; Product distribution; Mechanism; other alcohol, var. EtOH conc.; deuterium kinetic isotopic effect; | A 9% B 32% C 6% D 39% E 14% |
propene
A
2-methyl-2-pentene
B
trans-3-Hexene
C
trans-2-hexene
D
(Z)-4-methyl-2-pentene
E
(E)-4-methylpent-2-ene
F
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
With tetrabutylammonium perchlorate; bis(triphenylphosphine)nickel(II) chloride In various solvent(s) at 50℃; under 3750.3 Torr; for 24h; Product distribution; electrochemical reduction process, effect of catalyst, anode, supporting electrolyte, ligand, temperature and pressure; | A 23% B 13.5% C 4.2% D 6.1% E 32.7% F 14.8% |
Conditions | Yield |
---|---|
With NaX zeolite at 300℃; | 27% |
silver (I) ion In acetonitrile Irradiation; Yield given; | |
With hydrogenchloride; water In decalin at 165℃; for 20h; Product distribution; in sealed tube; also with DCl/D2O, deuteration investigated; | 20.1 % Chromat. |
cyclopentadienylirondicarbonyl hydride
2,3-dimethyl-buta-1,3-diene
A
2,3-Dimethyl-2-butene
B
cyclopentadienyl iron(II) dicarbonyl dimer
D
2,3-Dimethyl-1-butene
Conditions | Yield |
---|---|
In pentane under N2, stirring at room temp, the react. was complete within about 1 h; evapn. (vac.), chromy. on alumina (eluent pentane for the hydrometalated products, and more polar solvents for the dimer), elem. anal., (the org. products identified by GC and NMR); | A n/a B 20% C 8% D n/a |
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Chemical Name: 2,3-Dimethyl-1-butene
IUPAC NAME: 2,3-Dimethyl-1-butene
CAS No.: 563-78-0
EINECS: 209-262-2
EC Class: highly flammable
Molecular Formula: C6H12
Molecular Weight: 84.16 g/mol
Melting Point: -157 °C
Density: 0.685 g/cm3
Boiling Point: 55.8 °C at 760 mmHg
Following is the structure of 2,3-Dimethyl-1-butene (563-78-0):
Product Categories about 2,3-Dimethyl-1-butene (563-78-0) are Acyclic ; Alkenes ; Organic Building Blocks
The chemical synonymous of 2,3-Dimethyl-1-butene (563-78-0) are (CH3)2CHC(CH3)=CH2 ; 2,3-Dimethylbutene-1 ; 1-Methyl-1-isopropylethylene ; BISOMER DMB 2,3-Dimethyl-1-butene ; Dimethylbutene
Hazard Codes:
F: Flammable
Xn: Harmful
Risk Statements about 2,3-Dimethyl-1-butene (563-78-0):
R11 Highly flammable.
R36/37/38 Irritating to eyes, respiratory system and skin.
R65 Harmful: may cause lung damage if swallowed.
Safety Statements about 2,3-Dimethyl-1-butene (563-78-0):
S16 Keep away from sources of ignition - No smoking.
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39 Wear suitable gloves and eye/face protection.
S62 If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label.
1. Storage: Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
2. Handling: Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Take precautionary measures against static discharges. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
3. Personal Protection: Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
4. Fire Fighting: Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid. Containers may explode in the heat of a fire. Will be easily ignited by heat, sparks or flame. Extinguishing media: Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.