2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene

Base Information

• Chemical Name: 2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene
• CAS No.: 303-04-8
• Molecular Formula: C4Cl2 F6
• Molecular Weight: 232.94
• Hs Code.: 2903799090
• Mol file: 303-04-8.mol

Synonyms:2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene;C4-Cl2-F6;2,3-dichloro-1,1,1,4,4,4-hexafluorobut-2-ene;2,3-dichloro-1,1,1,4,4,4-hexafluoro-but-2-ene;1,1,1,4,4,4-hexafluoro-2,3-dichloro-2-butene

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Chemical Property of 2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene

Chemical Property:

• Appearance/Colour: clear colorless liquid
• Vapor Pressure: 4.42 psi ( 20 °C)
• Melting Point: -67 ºC
• Refractive Index: n20/D 1.3458(lit.)
• Boiling Point: 66-68 ºC(lit.)
• Flash Point: 3.2°C
• PSA: 0.00000
• Density: 1.605 g/mL at 25 ºC(lit.)
• LogP: 3.80020
• XLogP3: 3.5
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 6
• Rotatable Bond Count: 0
• Exact Mass: 231.9281244
• Heavy Atom Count: 12
• Complexity: 177

Purity/Quality:

Safty Information:

• Pictogram(s): T+XiTC
• Hazard Codes: T+,Xi,T,C
• Statements: 26-34
• Safety Statements: 26-28-36/37/39-45

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C(=C(C(F)(F)F)Cl)(C(F)(F)F)Cl

Technology Process of 2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene

There total 14 articles about 2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.0%

1,1,1,4,4,4-hexa-fluoro-2,2,3,3-tetrachlorobutane (375-34-8) → 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene (303-04-8)

Guidance literature:

With zinc; In methanol; for 5h; Reflux;

Reference yield: 39.0%

dichloromaleic acid anhydride (1122-17-4) → 3,4-dichloro-2,2,5,5-tetrafluoro-2,5-dihydrofuran (358-00-9) + 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene (303-04-8)

Guidance literature:

With sulfur tetrafluoride; hydrogen fluoride; at 200 ℃; for 24h; Yields of byproduct given;

DOI:10.1016/S0022-1139(00)82614-7

Reference yield: 12.0%

Hexachlorobutadiene (87-68-3) → 2?chloro?1,1,1,4,4,4?hexafluoro?2?butene (400-44-2) + 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene (303-04-8) + 1,2-dichloro-3,3,4,4-tetrafluorocyclobutene (377-93-5) + 1,1,1,2,4,4,4-heptafluoro-2-butene (760-42-9)

Guidance literature:

With hydrogen fluoride; at 380 ℃;

upstream raw materials:

Hexachlorobutadiene

2,2,3-trichloro-1,1,1,4,4,4-hexafluorobutane

hexafluoro-2-butyne

1,1,1,4,4,4-hexa-fluoro-2,2,3,3-tetrachlorobutane

Downstream raw materials:

1,1,1-trifluoro-2,2-dichloroethane

sodium 2,2,2-trifluoroacetate

cis-2,3-dichloro-2,3-epoxyhexafluorobutane

trans-2,3-dichloro-2,3-epoxyhexafluorobutane

Refernces

• 1、 -. "Preparation method of 1,1,1,4,4,4-hexafluoro-2-butene". Page/Page column 6-8. . Retrieved 2019/12/25.
• 2、 -. "Preparation method of 1,1,1,2,4,4,4-heptafluoro-2-butene". Paragraph 0027; 0028; 0229; 0030; 0031; 0036; 0041. . Retrieved 2019/01/07.