1,2-Dibromocyclopentane

Base Information

• Chemical Name: 1,2-Dibromocyclopentane
• CAS No.: 29974-65-0
• Molecular Formula: C5H8 Br2
• Molecular Weight: 227.927
• Hs Code.: 2903890090
• European Community (EC) Number: 608-434-8
• DSSTox Substance ID: DTXSID70907350
• Mol file: 29974-65-0.mol

Synonyms:1,2-Dibromocyclopentane;29974-65-0;Cyclopentane, 1,2-dibromo-, cis-;Cyclopentane, 1,2-dibromo-, trans-;33547-17-0;Cyclopentane, 1,2-dibromo-;SCHEMBL3214667;Cyclopentane, 1,2-dibromo-cis-;DTXSID70907350;Cyclopentane, 1,2-dibromo,trans-;MFCD06252229;AKOS016009106;SB74242;CS-0310140;D96921

Chemical Property of 1,2-Dibromocyclopentane

Chemical Property:

• Boiling Point: 196.9°Cat760mmHg
• Flash Point: 71.5°C
• PSA: 0.00000
• Density: 1.94g/cm³
• LogP: 2.69730
• Storage Temp.: 2-8°C
• XLogP3: 2.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 227.89723
• Heavy Atom Count: 7
• Complexity: 55.1

Purity/Quality:

1,2-Dibromocyclopentane 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1CC(C(C1)Br)Br

Technology Process of 1,2-Dibromocyclopentane

There total 5 articles about 1,2-Dibromocyclopentane 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:

Cyclopentane (287-92-3) → Cyclopentyl bromide (137-43-9) + 1,2-dibromo-cyclopentane (29974-65-0)

Guidance literature:

With N-Bromosuccinimide; bromine; In dichloromethane; cyclohexane; at 15 ℃; Product distribution; Mechanism; Irradiation; relative reactivity; other cycloalkanes; other bromination agents; var temp.;

DOI:10.1021/jo00209a036

Reference yield:

Cyclopentyl bromide (137-43-9) + acetonitrile (75-05-8,26809-02-9) → 1,2-dibromo-cyclopentane (29974-65-0) + N-cyclopentylacetamide (25291-41-2)

Guidance literature:

With bromine; at 38 ℃; for 4h; Product distribution; 0.1 M LiClO₄, electrolysis (1.6 V), without electrolysis, other time;

Reference yield:

→ trans-1,2-Dibromcyclopentan (10230-26-9,16936-81-5,29974-65-0,33547-17-0)

Guidance literature:

II, Cyclopenten, CCl4;

upstream raw materials:

Cyclopentane

Cyclopentyl bromide

acetonitrile

Downstream raw materials:

cyclopentane-1,2-diol

trans-cyclopentane-1,2-diol

cyclopenta-1,3-diene

cyclopentene

Refernces

• 1、 Tanner, D. D.,Meintzer, C. P.,Tan, S. L.. "The Mixed-Chain Alternative to the Postulated ? and ? Reactivities of the Succinimidyl Radical: Cyclopentane/Cyclohexane. A Critical Examination of the Rebuttal of the Previous Report". . p. 1534 - 1538. Retrieved 2007/10/02.