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CS-W001157 4
Total: USD 88.00

(E)-1,4-Dibromobut-2-ene

  • CAS No. 821-06-7

  • Cat. No. CS-0005942
  • Molecule weight213.90
  • Purity≥98%
  • MDL No.MFCD00000249

*For research and further manufacturing use only, not for direct human use.

(E)-1,4-Dibromobut-2-ene|CS-0005942

Structure of 821-06-7

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General Information

  • CAS No. 821-06-7
  • Cat. No. CS-0005942
  • Purity ≥98%
  • MDL No. MFCD00000249
  • Storage 4°C
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₄H₆Br₂
  • Molecular Weight 213.90
  • Synonym(s) trans-Dibromobutene
  • SMILES BrC/C=C/CBr

Description

(E)-1,4-Dibromobut-2-ene is a stereochemically defined dihaloalkene featuring a trans-configured double bond flanked by bromine atoms at the terminal positions. This configuration imparts enhanced stability and predictable reactivity in cross-coupling processes. The molecule integrates readily into synthetic sequences requiring controlled alkene functionality, particularly in palladium-catalyzed transformations where geometric integrity is critical. Its bench-stable nature facilitates handling under standard conditions.

Synthesis

  • Route1
    • null|null
      106-99-0
    • ~57%
    • In-stock
      (E)-1,4-Dibromobut-2-ene|CS-0005942
      821-06-7

    References

    • KOO, Sangho Patent: WO2006/38764 A1, 2006 ; Location in patent: Page/Page column 9-10 ;
  • Route2
    • null|null
      344397-18-8
    • ~%
    • In-stock
      (E)-1,4-Dibromobut-2-ene|CS-0005942
      821-06-7

    References

    • US4626544 A1, ;
  • Route3
    • null|null
      78-76-2
    • ~41%
    • null|null
      4784-77-4
    • In-stock
      2,3-Dibromobutane|CS-W014879
      5408-86-6
    • In-stock
      (E)-1,4-Dibromobut-2-ene|CS-0005942
      821-06-7
    • null|null
      50341-35-0

    References

    • Canadian Journal of Chemistry, , vol. 62, p. 2310 - 2316

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS05,GHS06
Signal Word : Danger
UN#: 2923
Class : 8 (6.1)
Packing Group : Ⅱ
Hazard Statements : H301-H314
Precautionary Statements : P260-P264-P270-P280-P301+P330+P331-P304+P340-P330-P363-P405-P501

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Computational Chemistry Data

  • TPSA   0
  • LogP   2.9685
  • H_Acceptors   0
  • H_Donors   0
  • Rotatable_Bonds   2

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