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CS-W001157 4
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Methyl 5-bromo-4-oxopentanoate

  • CAS No. 53856-93-2

  • Cat. No. CS-0042170
  • Purity≥96%
  • MDL No.MFCD18800850

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

Methyl 5-bromo-4-oxopentanoate|CS-0042170

Structure of 53856-93-2

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General Information

  • CAS No. 53856-93-2
  • Cat. No. CS-0042170
  • Purity ≥96%
  • MDL No. MFCD18800850
  • Storage 4°C
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₆H₉BrO₃
  • Molecular Weight 209.04
  • Synonym(s) None
  • SMILES O=C(OC)CCC(=O)CBr

Description

Methyl 5-bromo-4-oxopentanoate features a bromine atom at the C5 position flanking a ketone group, enabling direct functionalization at the α-carbon. This electrophilic scaffold integrates readily into Michael additions and aldol-type cyclizations, offering a robust entry point for synthesizing substituted cyclopentanones and bioactive heterocycles under mild conditions.

Application

Methyl 5-bromo-4-oxopentanoate serves as a versatile synthon in organic synthesis, enabling efficient construction of substituted γ-keto esters and heterocyclic scaffolds. Its α-bromoketone functionality facilitates nucleophilic substitution and elimination reactions, while the ester group supports further functionalization. The compound exhibits good bench stability and is readily purified by standard techniques, making it well-suited for iterative synthetic sequences in medicinal chemistry and process development.

Synthesis

  • Route1

    References

    • Array BioPharma Inc. Patent: US2009/156603 A1, 2009 ; Location in patent: Page/Page column 61 ;
  • Route2
    • null|null
      18107-18-1
    • In-stock
      Methyl 4-chloro-4-oxobutanoate|CS-0020054
      1490-25-1
    • ~%
    • In-stock
      Methyl 5-bromo-4-oxopentanoate|CS-0042170
      53856-93-2

    References

    • SYNGENTA LIMITED; JEANMART, Stephane Andre Marie; LONGSTAFF, Adrian; MATHEWS, Christopher John; RUSSELL, Claire Janet; VINER, Russell Colin; WOOD, Frances Kathryn Patent: WO2011/12862 A1, 2011 ; Location in patent: Page/Page column 89 ;
  • Route3
    • null|null
      67-56-1
    • In-stock
      Levulinic acid|CS-0015813
      123-76-2
    • ~85%
    • In-stock
      Methyl 5-bromo-4-oxopentanoate|CS-0042170
      53856-93-2

    References

    • Han, Minsoo; Nam, Kee Dal; Shin, Dongyun; Jeong, Nakcheol; Hahn, Hoh-Gyu Journal of Combinatorial Chemistry, 2010 , vol. 12, # 4 p. 518 - 530

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS05
Signal Word : Danger
UN#: 1759
Class : 8
Packing Group : Ⅱ
Hazard Statements : H314
Precautionary Statements : P264-P271-P280-P301+P330+P331-P304+P340-P363-P501

Quality Control

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Computational Chemistry Data

  • TPSA   43.37
  • LogP   0.9036
  • H_Acceptors   3
  • H_Donors   0
  • Rotatable_Bonds   4

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