1,1-Dibromoethane

Base Information

• Chemical Name: 1,1-Dibromoethane
• CAS No.: 557-91-5
• Molecular Formula: C2H4 Br2
• Molecular Weight: 187.862
• Hs Code.: 29033990
• European Community (EC) Number: 209-184-9
• UNII: KJ8ZJY72QQ
• DSSTox Substance ID: DTXSID3060324
• Nikkaji Number: J2.663H
• Wikipedia: 1,1-Dibromoethane
• Wikidata: Q2352935
• Mol file: 557-91-5.mol

Synonyms:1,1-DIBROMOETHANE;557-91-5;DIBROMOETHANE;Ethylidene bromide;Ethylidene dibromide;Ethane, 1,1-dibromo-;HSDB 7382;EINECS 209-184-9;UNII-KJ8ZJY72QQ;KJ8ZJY72QQ;CCRIS 8552;dibromethane;dibromoethan;Dibromoetane;dibromo ethane;2-dibromoethane;1,1-dibromo-ethane;CH3CHBr2;SCHEMBL4352;DIBROMOETHANE, 1,1-;DTXSID3060324;1,1-DIBROMOETHANE [HSDB];MFCD00041719;AKOS025295468;BS-42225;LS-65477;D0184;FT-0693205;EN300-67227;D78418;1,1-Dibromoethane (stabilized with copper chip);Q2352935

Chemical Property of 1,1-Dibromoethane

Chemical Property:

• Appearance/Colour: clear colourless to brownish liquid
• Vapor Pressure: 35.4mmHg at 25°C
• Melting Point: -63°C
• Refractive Index: 1.509-1.512
• Boiling Point: 104.7°Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: 2.127g/cm³
• LogP: 2.12220
• Water Solubility.: Insoluble in water
• XLogP3: 2.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 187.86593
• Heavy Atom Count: 4
• Complexity: 11.5

Purity/Quality:

98%,99%, ^*data from raw suppliers

1,1-Dibromoethane ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 40-20/21/22
• Safety Statements: 45-36/37

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Other Classes -> Halogenated Aliphatics, Saturated
• Canonical SMILES: CC(Br)Br

Technology Process of 1,1-Dibromoethane

There total 41 articles about 1,1-Dibromoethane 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: 55.9%

methyl iodide (74-88-4) + 1,1-dibromomethane (74-95-3) → 1,1-Dibromoethane (557-91-5)

Guidance literature:

With tetraethylammonium chloride; In acetonitrile; Ambient temperature; electrochemical conditions (Fe cathode);

Reference yield:

ethyl bromide (74-96-4) → 1,1-Dibromoethane (557-91-5) + 2,3-dibromobutane (5408-86-6) + ethane (74-84-0) + ethene (74-85-1) + n-butane (106-97-8,9003-29-6,9021-92-5)

Guidance literature:

With nitrogen(II) oxide; under 1.1 Torr; Quantum yield; Product distribution; Ambient temperature; Irradiation; var. pressure; effect of inert gas, radical scavenger;

Reference yield:

acetylene (74-86-2,25067-58-7) → Vinyl bromide (593-60-2,25951-54-6) + 1,1-Dibromoethane (557-91-5)

Guidance literature:

With mercury bromide; hydrogen bromide; at 200 ℃;

upstream raw materials:

ethyl bromide

Vinyl bromide

1,1-dichloroethane

2-bromo-propionic acid amide

Downstream raw materials:

Vinyl bromide

acetylene

1,1-dibenzoylethane

5-ethyl-2-methyl-pyridine

Refernces

• 1、 Thiessen,Miller. "-". . p. 770. Retrieved 1955.
• 2、 -. "Synthesis of hydroxylated hydrocarbons". Page/Page column 5. . Retrieved 2008/06/13.
• 3、 Tschuikow-Roux,Salomon,Paddison. "Reaction of atomic bromine with ethyl bromide. The heat of formation of the CH3CHBr radical and the α-carbon-hydrogen bond dissociation energy". . p. 3037 - 3040. Retrieved 2007/10/02.