2-Bromocyclopent-2-enone

Base Information

• Chemical Name: 2-Bromocyclopent-2-enone
• CAS No.: 10481-34-2
• Molecular Formula: C5H5 Br O
• Molecular Weight: 160.998
• Hs Code.: 2914700090
• DSSTox Substance ID: DTXSID00146755
• Nikkaji Number: J688.791K
• Wikidata: Q83011629
• Mol file: 10481-34-2.mol

Synonyms:2-Bromocyclopent-2-enone;10481-34-2;2-Bromo-2-cyclopentenone;2-bromocyclopent-2-en-1-one;2-Bromo-2-cyclopenten-1-one;2-Cyclopenten-1-one, 2-bromo-;C5H5BrO;bromocyclopentenone;2-bromo-cyclopent-2-enone;C5-H5-Br-O;SCHEMBL1338864;2-bromo-cyclopent-2-en-1-one;WJZDXONSAPNKGB-UHFFFAOYSA-;DTXSID00146755;WJZDXONSAPNKGB-UHFFFAOYSA-N;MFCD11109364;AKOS006240715;BS-14256;CS-0030114;FT-0658424;EN300-62497;D82390;A801065;J-508515;InChI=1/C5H5BrO/c6-4-2-1-3-5(4)7/h2H,1,3H2

Chemical Property of 2-Bromocyclopent-2-enone

Chemical Property:

• Vapor Pressure: 0.143mmHg at 25°C
• Boiling Point: 216°Cat760mmHg
• Flash Point: 117°C
• PSA: 17.07000
• Density: 1.771g/cm³
• LogP: 1.62810
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• XLogP3: 1.4
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 159.95238
• Heavy Atom Count: 7
• Complexity: 126

Purity/Quality:

97% ^*data from raw suppliers

2-Bromocyclopent-2-enone ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CC(=O)C(=C1)Br

Technology Process of 2-Bromocyclopent-2-enone

There total 17 articles about 2-Bromocyclopent-2-enone 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: 99.0%

cyclopent-2-enone (930-30-3) → 2-bromo-2-cyclopenten-1-one (10481-34-2)

Guidance literature:

With pyridine N-oxide; N-Bromosuccinimide; In acetonitrile; at 0 - 20 ℃; Inert atmosphere;

DOI:10.1016/j.tet.2011.01.019

Reference yield: 93.0%

(2-Bromo-3-oxo-cyclopentyl)-dimethyl-sulfonium; bromide (83769-14-6) → 2-bromo-2-cyclopenten-1-one (10481-34-2)

Guidance literature:

With sodium hydrogencarbonate; Ambient temperature;

DOI:10.1139/v82-322

Reference yield: 73.0%

2-Bromo-2-phenylselanyl-cyclopentanone → 2-bromo-2-cyclopenten-1-one (10481-34-2)

Guidance literature:

With pyridine; dihydrogen peroxide; In dichloromethane; at 30 ℃;

upstream raw materials:

cyclopent-2-enone

2-(phenylselenenyl)-2-cyclopentenone

2-<(dimethylthiocarbamoyl)oxy>-2-cyclopenten-1-one

(2-Bromo-3-oxo-cyclopentyl)-dimethyl-sulfonium; bromide

Downstream raw materials:

isopropyl-1-phenyl-2-diaza-1,3-one-7-bicyclo<3,3,0>octene-2

(-)-menthol

6-(Toluene-4-sulfinyl)-1,4-dioxa-spiro[4.4]non-6-ene

6-bromo-1,4-dioxa-spiro[4.4]non-6-ene