2-Butene, 1,4-dibromo-2,3-dimethyl-

Base Information

• Chemical Name: 2-Butene, 1,4-dibromo-2,3-dimethyl-
• CAS No.: 34619-20-0
• Molecular Formula: C6H10Br2
• Molecular Weight: 241.953
• Hs Code.: 2903399090
• DSSTox Substance ID: DTXSID50339534
• Mol file: 34619-20-0.mol

Synonyms:34619-20-0;2-Butene, 1,4-dibromo-2,3-dimethyl-;1,4-dibromo-2,3-dimethylbut-2-ene;DTXSID50339534

Chemical Property of 2-Butene, 1,4-dibromo-2,3-dimethyl-

Chemical Property:

• PSA: 0.00000
• LogP: 3.11260
• XLogP3: 3.3
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 2
• Exact Mass: 241.91288
• Heavy Atom Count: 8
• Complexity: 82.7

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: CC(=C(C)CBr)CBr
• Uses: 1,4-dibromo-2,3-dimethyl-2-butene is a reagent used in the synthesis, spectroscopic characterization, and structural studies of novel aldehyde and thiosemicarbazone derivatives.

Technology Process of 2-Butene, 1,4-dibromo-2,3-dimethyl-

There total 7 articles about 2-Butene, 1,4-dibromo-2,3-dimethyl- 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: 62.0%

C6H12O2 (89534-26-9) → 1,4-dibromo-2,3-dimethyl-but-2-ene (34619-20-0)

Guidance literature:

With pyridine; phosphorus tribromide; In diethyl ether; at 0 - 20 ℃; for 3h;

DOI:10.1039/d0cc05565d

Reference yield:

2,3-dimethylbutane (79-29-8) → 2,3-dibromo-2,3-dimethylbutane (594-81-0) + 1,4-dibromo-2,3-dimethyl-but-2-ene (34619-20-0) + 2-bromo-2,3-dimethylbutane (594-52-5)

Guidance literature:

at 100 ℃; Photobromierung in der Dampfphase;

DOI:10.1021/jo01123a021

Reference yield:

2,3-Dimethylmaleic anhydride (766-39-2) → 1,4-dibromo-2,3-dimethyl-but-2-ene (34619-20-0)

Guidance literature:

Multi-step reaction with 2 steps

1: lithium aluminium tetrahydride / diethyl ether / 4 h / 0 - 40 °C

2: pyridine; phosphorus tribromide / diethyl ether / 3 h / 0 - 20 °C

With pyridine; lithium aluminium tetrahydride; phosphorus tribromide; In diethyl ether;

DOI:10.1039/d0cc05565d

upstream raw materials:

2,3-dimethylbutane

2,3-dimethyl-buta-1,3-diene

2,3-dimethyl-2,3-butane diol

2,3-Dimethylmaleic anhydride

Downstream raw materials:

C₃₆H₄₂N₂O₄S₂

4,5-Dimethyl-3-methylsulfanyl-cyclohex-4-ene-1,1,2,2-tetracarbonitrile

3-Ethylsulfanyl-4,5-dimethyl-cyclohex-4-ene-1,1,2,2-tetracarbonitrile

1,4-dibromo-2,3-bis-bromomethyl-but-2-ene