1,1-Dichloro-2,2-difluoroethylene

Base Information

• Chemical Name: 1,1-Dichloro-2,2-difluoroethylene
• CAS No.: 79-35-6
• Molecular Formula: C2Cl2F2
• Molecular Weight: 132.925
• Hs Code.: 2903779090
• European Community (EC) Number: 201-198-3
• UNII: WC503FP86Y
• DSSTox Substance ID: DTXSID6073150
• Nikkaji Number: J28.329K
• Wikipedia: Dichlorodifluoroethylene
• Wikidata: Q905293
• Mol file: 79-35-6.mol

Synonyms:1,1-dichloro-2,2-difluoroethylene;1,1-difluoro-2,2-dichloroethylene;DCDFE

Chemical Property of 1,1-Dichloro-2,2-difluoroethylene

Chemical Property:

• Appearance/Colour: Colorless
• Vapor Pressure: 999mmHg at 25°C
• Melting Point: -116°C
• Refractive Index: 1.392
• Boiling Point: 19°C
• PSA: 0.00000
• Density: 1,439 g/cm³
• LogP: 2.52960
• XLogP3: 2.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 2
• Rotatable Bond Count: 0
• Exact Mass: 131.9345117
• Heavy Atom Count: 6
• Complexity: 69.6

Purity/Quality:

98% ^*data from raw suppliers

1,1-Dichloro-2,2-difluoroethylene 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 23-36/38
• Safety Statements: 9-23-45

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Other Classes -> Halogenated Aliphatics, Unsaturated
• Canonical SMILES: C(=C(Cl)Cl)(F)F

Technology Process of 1,1-Dichloro-2,2-difluoroethylene

There total 30 articles about 1,1-Dichloro-2,2-difluoroethylene 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: 90.0%

(2,2-dichloro trifluoro ethyl) trifluoro silane (54939-02-5) → 1,1'-dichloro-2,2'-difluoroethene (79-35-6) + 1,2-dichloro-1,2-difluoroethene (598-88-9) + silicon tetrafluoride (7783-61-1)

Guidance literature:

In neat (no solvent); pyrolysis at 140°C, 3 hours;;

DOI:10.1039/DT9740002509

Reference yield: 90.0%

1,1-difluorotetrachloroethane (76-11-9) → 1,1'-dichloro-2,2'-difluoroethene (79-35-6)

Guidance literature:

With hydrogen; at 150 ℃; for 2h;

DOI:10.1134/S1070428010090046

Reference yield: 80.0%

(2,2-dichloro trifluoro ethyl) trichloro silane (662-06-6) → 1,1'-dichloro-2,2'-difluoroethene (79-35-6) + 1,2-dichloro-1,2-difluoroethene (598-88-9)

Guidance literature:

In neat (no solvent); pyrolysis at 250°C;;

upstream raw materials:

1,1-difluoroethane

1,1-difluorotetrachloroethane

1-Chloro-1,1-difluoroethane

Vinylidene fluoride

Downstream raw materials:

4,4-dichloro-3,3-difluoro-1-phenyl-cyclobutene

1,1,2,2-tetrachloro-3,3,4,4-tetrafluorocyclobutane

3-Chlor-4-fluor-tert.-butylbenzol

(Z)-2-Chlor-1-oxo-1-phenyl-2-hexen

Refernces

• 1、 -. "A two-fluorine bromine acetate preparation method (by machine translation)". Paragraph 0026; 0028; 0031; 0033; 0036; 0038; 0041; 0043. . Retrieved 2019/01/22.
• 2、 -. "Process for activation of AIF3 based catalysts and process for isomerising hydrochlorofluorocarbons". Page 8. . Retrieved 2008/06/13.