2,3-Dibromotetrahydro-2H-pyran

Base Information

• Chemical Name: 2,3-Dibromotetrahydro-2H-pyran
• CAS No.: 56660-59-4
• Molecular Formula: C₅H₈Br₂O
• Molecular Weight: 243.926
• Hs Code.: 2932999099
• DSSTox Substance ID: DTXSID20448127
• Nikkaji Number: J1.151.306I
• Mol file: 56660-59-4.mol

Synonyms:2,3-Dibromotetrahydro-2H-pyran;56660-59-4;2,3-dibromooxane;2,3-dibromotetrahydropyran;SCHEMBL16827257;DTXSID20448127;AKOS016014513;CS-0232875;EN300-129222

Chemical Property of 2,3-Dibromotetrahydro-2H-pyran

Chemical Property:

• Boiling Point: 224.0±40.0 °C(Predicted)
• PSA: 9.23000
• Density: 1.932±0.06 g/cm3(Predicted)
• LogP: 2.28130
• Storage Temp.: 2-8°C
• XLogP3: 2.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 243.89214
• Heavy Atom Count: 8
• Complexity: 76.8

Purity/Quality:

97% ^*data from raw suppliers

2,3-dibromotetrahydro-2H-pyran 95% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CC(C(OC1)Br)Br

Technology Process of 2,3-Dibromotetrahydro-2H-pyran

There total 8 articles about 2,3-Dibromotetrahydro-2H-pyran 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: 100.0%

3,4-dihydro-2H-pyran (110-87-2) → 2,3-dibromotetrahydropyran (56660-59-4)

Guidance literature:

With bromine; In tetrachloromethane;

Reference yield:

3,4-dihydro-2H-pyran (110-87-2) → trans-2,3-dibromotetrahydropyran (20237-22-3,56660-59-4,85373-63-3)

Guidance literature:

With tetrachloromethane; bromine; at 0 ℃; unter Lichtausschluss;

DOI:10.1021/ja01216a011 DOI:10.1139/v65-197

Reference yield:

3,4-dihydro-2H-pyran (110-87-2) → trans-2,3-dibromotetrahydropyran (20237-22-3,56660-59-4,85373-63-3) + cis-2,3-dibromotetrahydropyran (20237-22-3,56660-59-4,85373-63-3)

Guidance literature:

With bromine; In 1,4-dioxane; at 5 ℃; Title compound not separated from byproducts;

DOI:10.1016/S0040-4020(01)87552-9

upstream raw materials:

3,4-dihydro-2H-pyran

tetrachloromethane

N-Bromosuccinimide

5-bromo-3,4-dihydro-2H-pyran

Downstream raw materials:

3-bromo-2-methoxy-tetrahydropyran

3-Brom-2-aethoxytetrahydropyran

3-bromo-2-phenyl-tetrahydro-pyran

(+/-)-3-bromo-2-methyloxane

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