558-37-2

Basic information

• Product Name: 3,3-Dimethyl-1-butene
• Synonyms: 3,3-Dimethyl-1-butenee(neotene);3,3-DIMETHYL-1-BUTENE, STANDARD FOR GC;1-Butene, 3,3-dimethyl-;3,3-Dimethy-1-butene;3,3-DIMETHYL-1-BUTENE 95+%;3,3-Dimethyl-1-butene, 95%, stab. with 50-100ppm BHT;Neohexene (3,3-dimethylbutene);3,3-DiMethyl-1-butene, 95% 250ML
• CAS NO: 558-37-2
• Molecular Formula: C6H12
• Molecular Weight: 84.16
• EINECS: 209-195-9
• Mol File: 558-37-2.mol
• Article Data: 144

Chemical Properties

• Melting Point: −115 °C(lit.)
• Boiling Point: 41 °C(lit.)
• Flash Point: −20 °F
• Appearance: Clear colorless/Liquid
• Density: 0.653 g/mL at 25 °C(lit.)
• Vapor Density: >1 (vs air)
• Vapor Pressure: 6.96 psi ( 20 °C)
• Refractive Index: n20/D 1.376(lit.)
• Storage Temp.: Flammables area
• Explosive Limit: 1.2%(V)
• Water Solubility: Not miscible or difficult to mix in water.
• BRN: 1697101
• CAS DataBase Reference: 3,3-Dimethyl-1-butene(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3-Dimethyl-1-butene(558-37-2)
• EPA Substance Registry System: 3,3-Dimethyl-1-butene(558-37-2)

Safety Data

• Hazard Codes: F,Xn,Xi
• Statements: 11-36/37/38-65
• Safety Statements: 16-26-33-36-62-37/39
• RIDADR: UN 3295 3/PG 2
• WGK Germany: 3
• RTECS: BS8000000
• TSCA: Yes
• HazardClass: 3
• PackingGroup: II
• Hazardous Substances Data: 558-37-2(Hazardous Substances Data)

Usage

Chemical Properties

clear colorless liquid

General Description

3,3-Dimethyl-1-butene oxidizes selectively to corresponding epoxide by chlorine promoted Ag(111) oxygen adatoms. It undergoes copolymerization with ethylene using a chain-walking Pd-diimine catalyst.

InChI:InChI=1/C6H12/c1-5-6(2,3)4/h5H,1H2,2-4H3

Synthetic route

Methylenetriphenylphosphorane (19493-09-5) + OMo(NNCH-t-Bu)(S2CN(Et)2)2 → tert-butylethylene (558-37-2)

Conditions	Yield
for 24h; Ambient temperature;	99%

2,2-dimethyl-3-butyne (917-92-0) → tert-butylethylene (558-37-2)

Conditions	Yield
With quinoline; hydrogen; Pd-BaSO4 In toluene at 20℃; under 760 Torr;	88%
With Rh2H2(CO)(dppm)2; hydrogen In benzene-d6
With diisobutylaluminium hydride In n-heptane at 50℃; for 2h;

tert-butylmercury chloride (38442-51-2) + tri-n-butyl(vinyl)tin (7486-35-3) → Me3CCH2CH2SnBu3 (111823-15-5) + tert-butylethylene (558-37-2)

Conditions	Yield
With sodium tetrahydroborate In dimethyl sulfoxide; benzene Irradiation (UV/VIS); mixt. of substrate and mercurial is irradiated in nitrogen-purged solvent in Pyrex tube with 275-W sunlamp for 2 h; mixt. is worked up with NaBH4, (1)H-NMR;	A 80% B 10%

styrene (292638-84-7) + Ta(CHCMe3)(OCMe3)2(PMe3)Cl + trimethylphosphane (594-09-2) → tert-butylethylene (558-37-2) + Ta(CHC6H5)(OC(CH3)3)2(P(CH3)3)2Cl

Conditions	Yield
In benzene 25°C for 7 h;	A 80% B n/a

Ru3(CO)4{Ph2PC(H)C(Bu(t))}{(Ph2PCC(Bu(t))}(PPh2) → 2,2-dimethyl-3-butyne (917-92-0) + tert-butylethylene (558-37-2) + 2,2-Dimethylbutane (75-83-2)

Conditions	Yield
In gas treatment in sealed vial under H2 for 45 min at 120 °C, partly decompd.;	A 2.7% B 19% C 78%

3-tert-butyltitanacyclobutane (75687-68-2) + diphenyl ketene (525-06-4) → Cp2(3-diphenylmethylene-titanaoxacyclobutane) (112681-98-8) + tert-butylethylene (558-37-2)

Conditions	Yield
In toluene 3-tert-butyltitanacyclobutane and diphenylketene in toluene is heated at 80°C for 10 min, solids pptd.; solution removed, solid is washed (pentane, ether), dried overnight, recrystn. (ether, CH2Cl2 or toluene); elem. anal.;	A 71% B n/a

Upstream product

• 55837-19-9 Exaprolol 
• 55837-18-8 Butibufen 
• 55837-17-7 Brindoxime 
• 55837-16-6 SODIUM OCTOXYNOL-2 ETHANE SULFONATE 
• 55837-15-5 butopiprine 
• 55837-14-4 Butaverine 
• 55837-13-3 Piclopastine 
• 55837-12-2 Phenyl[5-(dimethylamino)-1-naphtylsulfonyl] ether 
• 55837-11-1 5-Dimethylamino-N-benzyl-N-methyl-1-naphthalenesulfonamide 
• 55837-09-7 5-(Dimethylamino)-1-naphthalenesulfonic acid 2-amino-1-phenylethyl ester 
• 55837-04-2 (1S)-3β-[[3-(3,4-Dimethoxyphenyl)-1-oxo-2-propenyl]oxy]-1α,4α,5α-trimethoxycyclohexanecarboxylic acid methyl ester 
• 55837-03-1 3β-Methoxy-16,16-dimethylandrost-5-en-17-one 
• 55837-02-0 3α-Methoxy-16,16-dimethylandrost-5-en-17-one 
• 55837-01-9 3β-Methoxy-16,16-dimethyl-5α-androstan-17-one 

Downstream Products

• 55837-20-2 Halofuginone 
• 55837-21-3 Pipoxizine 
• 55837-22-4 Pribecaine 
• 55837-23-5 teflutixol 
• 55837-24-6 Bisfenazone 
• 55837-25-7 Buflomedil 
• 55837-26-8 Fenperate 
• 55837-27-9 Piretanide 
• 55837-28-0 Tiafibrate 
• 55837-29-1 Tiropramide 
• 55837-30-4 Lysine clonixinate 
• 5583-76-6 4-[(4-chlorophenyl)hydrazono]-4H-pyrazole-3,5-diamine 
• 558-38-3 2-Chloro-2-methyl-1-propanol 
• 5583-85-7 1-chloro-4-[4-(3-methoxyphenoxy)butoxy]-2-methylbenzene 

Recommend Products

• 640-21-1  1,2-dibromo-3,3-dimethylbutane 
• 26356-14-9  2-bromo-1-methoxy-3,3-dimethyl-butane 
• 67-56-1  methanol 
• 563-79-1  2,3-Dimethyl-2-butene 
• 563-78-0  2,3-Dimethyl-1-butene 
• 85-44-9  phthalic anhydride 
• 464-07-3  3,3-dimethyl-2-butanol 
• 98-11-3  benzenesulfonic acid 
• 115-11-7  isobutene 
• 5857-68-1  di-t-butyl-1,1 ethylene 
• 162109-20-8  1-bromo-4-naphthalenesulfonic acid 
• 74-93-1  methylthiol 
• 463-58-1  carbon oxide sulfide 
• 72535-90-1  O-pinacolyl S-methyl xanthate