CF2=C=CH2

Base Information

• Chemical Name: CF2=C=CH2
• CAS No.: 430-64-8
• Molecular Formula: C3H2F2
• Molecular Weight: 76.0457
• Hs Code.: 2933399022
• Mol file: 430-64-8.mol

Synonyms:Propadiene,1,1-difluoro- (6CI,7CI,8CI);1,1-Difluoroallene;

Chemical Property of CF2=C=CH2

Chemical Property:

• Vapor Pressure: 4590mmHg at 25°C
• Refractive Index: 1.308
• PSA: 0.00000
• Density: 0.921 g/cm³
• LogP: 1.55170

Purity/Quality:

10% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of CF2=C=CH2

There total 3 articles about CF2=C=CH2 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: 54.0%

2-bromo-3,3,3-trifluoropropene (1514-82-5) → 1,1-difluoroallene (430-64-8) + 1,1,1-trifluoropropylene (677-21-4)

Guidance literature:

2-bromo-3,3,3-trifluoropropene; With n-butyllithium; In diethyl ether; at -78 ℃; for 0.25h;

With methanol; In diethyl ether; at -78 ℃;

DOI:10.1055/s-2005-918413

Reference yield:

1,1,2,2-tetrafluoro-3-methylenecyclobutane (422-15-1) → Vinylidene fluoride (75-38-7) + 1,1-difluoroallene (430-64-8)

Guidance literature:

at 800 ℃; Hochvakuum;

Reference yield:

1,1,1,3,3-pentafluorobutane (406-58-6) → (Z)-1,1,1,3-tetrafluoro-2-butene (791616-88-1) + (E)-1,1,1,3-tetrafluoro-2-butene (791616-87-0) + 1,1-difluoroallene (430-64-8) + 1,1,3-trifluoro-buta-1,3-diene (674-85-1) + 1,1,1,3-tetrafluorobut-3-ene (721946-02-7)

Guidance literature:

pyrographite; at 500 ℃; for 5h;

With hydrogenchloride; at 50 - 400 ℃; for 3h;

1,1,1,3,3-pentafluorobutane; at 300 - 450 ℃; Product distribution / selectivity;

upstream raw materials:

1,1,2,2-tetrafluoro-3-methylenecyclobutane

2-bromo-3,3,3-trifluoropropene

1,1,1,3,3-pentafluorobutane

Downstream raw materials:

C₁₇H₁₄F₂

C₁₇H₁₄F₂

C₁₁H₉⁽²⁾HF₂

C₁₁H₉⁽²⁾HF₂

Refernces

• 1、 Nadano, Ryo,Ichikawa, Junji. "A facile synthesis of N-[2-(trifluoromethyl)allyl]amides and their transformation into angularly trifluoromethylated bicyclic cyclopentenones". . p. 22 - 23. Retrieved 2007/10/03.
• 2、 -. "A METHOD FOR PRODUCING 4,4,4-TRIFLUOROBUTANE-2-ONE". Page/Page column 25-26; 28. . Retrieved 2008/06/13.