1,1-Dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane

Base Information

• Chemical Name: 1,1-Dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane
• CAS No.: 1123-47-3
• Molecular Formula: C₈H₁₂Br₂
• Molecular Weight: 267.991
• NSC Number: 135174
• DSSTox Substance ID: DTXSID80300171
• Nikkaji Number: J1.094.914I
• Wikidata: Q82043025

Synonyms:1123-47-3;1,1-dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane;NSC135174;DTXSID80300171;NSC-135174

Chemical Property of 1,1-Dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane

Chemical Property:

• Vapor Pressure: 0.454mmHg at 25°C
• Boiling Point: 200.7°Cat760mmHg
• Flash Point: 74.8°C
• Density: 1.667g/cm³
• XLogP3: 3.7
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 267.92853
• Heavy Atom Count: 10
• Complexity: 195

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(=C1C(C1(Br)Br)(C)C)C

Technology Process of 1,1-Dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane

There total 3 articles about 1,1-Dibromo-2,2-dimethyl-3-(propan-2-ylidene)cyclopropane 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: 35.0%

Bromoform (75-25-2) + 2,4-dimethyl-2,3-pentadiene (1000-87-9) → 3,4-dibromo-2,5-dimethylhexa-2,5-diene (88919-69-1) + 1,1-dibromo-2,2-dimethyl-3-isopropylidenecyclopropane (1123-47-3) + 1,1,4,4-tetrabromo-2,2,5,5-tetramethylspiro<2.2>pentane (2566-52-1)

Guidance literature:

With sodium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; In dichloromethane; for 1.5h; ultrasound treatment;

DOI:10.1080/00397919908086077

Reference yield:

Bromoform (75-25-2) + 2,4-dimethyl-2,3-pentadiene (1000-87-9) → 1,1-dibromo-2,2-dimethyl-3-isopropylidenecyclopropane (1123-47-3)

Guidance literature:

With potassium tert-butylate; In pentane;

DOI:10.1021/jo01015a021

Reference yield:

dibromocarbene (135226-15-2,4371-77-1) + 2,4-dimethyl-2,3-pentadiene (1000-87-9) → 1,1-dibromo-2,2-dimethyl-3-isopropylidenecyclopropane (1123-47-3)

Guidance literature:

DOI:10.1016/S0040-4039(00)90174-6

upstream raw materials:

dibromocarbene

2,4-dimethyl-2,3-pentadiene

Bromoform

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