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Cas Database

Name	cis-2-Butene	EINECS	209-673-7
CAS No.	590-18-1	Density	0.636 g/cm³
PSA	0.00000	LogP	1.58240
Solubility	Insoluble in water	Melting Point	-139 °C(lit.)
Formula	C₄H₈	Boiling Point	3.719 °C at 760 mmHg
Molecular Weight	56.1075	Flash Point	-99 °F
Transport Information	UN 1012 2.1	Appearance	colorless liquefied petroleum gas.
Safety	9-16-33	Risk Codes	12
Molecular Structure		Hazard Symbols	F+
Synonyms	2-Butene, (Z)-;High-boiling butene-2;cis-1,2-Dimethylethylene;beta-cis-Butylene;beta-cis-Butylene;	Article Data	767

cis-2-Butene Synthetic route

: (C4H9)2ISnCH(CH3)CH(CH3)O2CCH3

A: 590-18-1
(Z)-2-Butene

B: iodoacetoxydibutylstannane

C: 2865-19-2
dibutyl tin diiodide

D: 1067-33-0
dibutyltin diacetate

Conditions

Conditions	Yield
In neat (no solvent) heating at 50°C for a few hours; same result in CCl4 at 50°C;	A 100% B n/a C n/a D n/a

: ((C6H5)2PC2H4P(C6H5)2)((CH3)3CCH2)PtMn(CO)5

: 5954-71-2
(2R,3S)-dimethylthiirane

A: 590-18-1
(Z)-2-Butene

: (dppe)Me3CCH2Pt(μ-S)Mn(CO)5

Conditions

Conditions	Yield
In not given 50°C;	A 98% B n/a

: {1,2-bis(dicyclohexylphosphino)ethane}(butane-1,4-diyl)palladium(II)

A: 106-98-9
1-butylene

B: 590-18-1
(Z)-2-Butene

C: 624-64-6
trans-2-Butene

D: 74-85-1
ethene

E: 106-97-8
n-butane

Conditions

Conditions	Yield
In toluene thermal decompn. at 95°C (70 h);	A 0.4% B 0.6% C 1.1% D 97.8% E 0.1%
In toluene thermal decompn. at 95°C (23 h);	A 8% B 20.9% C 46.3% D 20.2% E 4.6%

...Expand

: 74-85-1
ethene

A: 106-98-9
1-butylene

B: 590-18-1
(Z)-2-Butene

Conditions

Conditions	Yield
Ni(DMPMNBu)Cl2 In toluene at 30 - 60℃; under 15201 Torr; Product distribution / selectivity; Autoclave; Gas phase;	A 93.7% B 5.1%
yttrium; nickel(II) at 199.9℃; Product distribution; various Ni-substituted catalysts;	A 7.1% B 90%
With C16H19Br2N4NiP In toluene at 30℃; under 6000.6 Torr; for 0.5h; Catalytic behavior; Time; Reagent/catalyst; Temperature;

: {1,4-bis(diphenylphosphino)butane}(butane-1,4-diyl)palladium(II)

A: 106-98-9
1-butylene

B: 590-18-1
(Z)-2-Butene

C: 624-64-6
trans-2-Butene

D: 74-85-1
ethene

E: 106-99-0
buta-1,3-diene

Conditions

Conditions	Yield
In toluene thermal decompn. at 95°C (23 h);	A 93.1% B 1.3% C 0.3% D 0.5% E 4.8%

...Expand

: cis-bis(triethylphosphine)(n-butyl)(I) platinum(II)

A: 106-98-9
1-butylene

B: 590-18-1
(Z)-2-Butene

: 16971-06-5, 19696-06-1
trans-hydridoiodobis(triethylphosphine)platinum(II)

D: 624-64-6
trans-2-Butene

Conditions

Conditions	Yield
In acetone Kinetics; at 283.66-313.16 K; NMR;	A 91.8% B 5.9% C n/a D 3.1%

: cis-bis(triethylphosphine)(n-butyl)(isoselenocyanato) platinum(II)

A: 106-98-9
1-butylene

B: 590-18-1
(Z)-2-Butene

: 37809-11-3
trans-bis(triethylphosphine)(hydrido)(selenocyanato) platinum(II)

D: 624-64-6
trans-2-Butene

Conditions

Conditions	Yield
In acetone Kinetics; at 298.16 K; NMR;	A 90.6% B 5.4% C n/a D 4%

: tris(cyclopentadienyl)thorium(IV) cis-1-methyl-1-propenyl

A: 590-18-1
(Z)-2-Butene

B: 624-64-6
trans-2-Butene

Conditions

Conditions	Yield
In benzene-d6 Kinetics; at 167 +/- 1°C;	A 90% B <5

: tris(cyclopentadienyl)thorium(IV) trans-1-methyl-1-propenyl

A: 590-18-1
(Z)-2-Butene

B: 624-64-6
trans-2-Butene

Conditions

Conditions	Yield
In benzene-d6 Kinetics; thermolysis at 167+/-1°C;	A 6% B 90%

: C41H43MnO6P2PtS

A: 590-18-1
(Z)-2-Butene

: C36H35MnO5P2PtS

Conditions

Conditions	Yield
In benzene at 50℃; for 2h;	A n/a B 89%

cis-2-Butene Specification

The cas register number of cis-2-Butene is 590-18-1. It also can be called as cis-1,2-Dimethylethylene and the IUPAC Name about this chemical is (Z)-but-2-ene. It belongs to the following product categories, such as Gas Cylinders, Hydrocarbons (Low Boiling point), Synthetic Organic Chemistry, Chemical Synthesis, Compressed and Liquefied Gases, Synthetic Reagents and so on.

Physical properties about cis-2-Butene are: (1)ACD/LogP: 2.34; (2)ACD/LogD (pH 5.5): 2.336; (3)ACD/LogD (pH 7.4): 2.336; (4)ACD/BCF (pH 5.5): 35.094; (5)ACD/BCF (pH 7.4): 35.094; (6)ACD/KOC (pH 5.5): 444.321; (7)ACD/KOC (pH 7.4): 444.321; (8)Index of Refraction: 1.384; (9)Molar Refractivity: 20.638 cm³; (10)Molar Volume: 88.177 cm³; (11)Polarizability: 8.182x10^-24cm³; (12)Surface Tension: 16.795 dyne/cm; (13)Enthalpy of Vaporization: 23.34 kJ/mol; (14)Boiling Point: 3.719 °C at 760 mmHg; (15)Vapour Pressure: 1595.904 mmHg at 25°C.

Preparation: this chemical can be prepared by ethene, this reaction also can produce butane. This reaction will need reagent H₂, ZrO₂. The reaction reaction temperature is 298 ℃. The yield is about 48.9%.

Uses of cis-2-Butene: it can be used to produce ethyl perhydro-2,2,4,5-tetramethyl-3-oxo-1H-cyclobuta[b]pyrrole-1-carboxylate. This reaction will need solvent acetonitrile with reaction time of 16 hours. The yield is about 78%.

When you are using this chemical, please be cautious about it as the following:
This chemical is extremely flammable. When you are using it, please keep container in a well-ventilated place and keep away from sources of ignition, you also need take precautionary measures against static discharges.

You can still convert the following datas into molecular structure:
(1)SMILES: C/C=C\C
(2)InChI: InChI=1/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-
(3)InChIKey: IAQRGUVFOMOMEM-ARJAWSKDBO
(4)Std. InChI: InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3/b4-3-
(5)Std. InChIKey: IAQRGUVFOMOMEM-ARJAWSKDSA-N

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