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256536

Sigma-Aldrich

Phosphorus tribromide

99%

Sinônimo(s):

Phosphorus(III) bromide

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5 G
R$ 425,00
100 G
R$ 637,00
500 G
R$ 2.705,00

About This Item

Fórmula linear:
PBr3
Número CAS:
Peso molecular:
270.69
Número CE:
Número MDL:
Código UNSPSC:
12352101
ID de substância PubChem:
NACRES:
NA.22

R$ 425,00


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pressão de vapor

0.27 psi ( 54 °C)

Ensaio

99%

Formulário

liquid

índice de refração

n20/D 1.697 (lit.)

p.e.

175 °C (lit.)

pf

−41.5 °C (lit.)

densidade

2.88 g/mL at 20 °C (lit.)

cadeia de caracteres SMILES

BrP(Br)Br

InChI

1S/Br3P/c1-4(2)3

chave InChI

IPNPIHIZVLFAFP-UHFFFAOYSA-N

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Descrição geral

Phosphorus tribromide (PBr3) is commonly used in Hell-Volhard-Zelinsky halogenation for the α-bromination of carboxylic acids to form the corresponding acyl bromide. It is also useful for the conversion of primary and secondary alcohols to alkyl bromides.[1]

Aplicação

Phosphorus tribromide may be used as a reagent:
  • In a novel protocol for synthesizing 7-ethoxy-1-(p-ethylphenoxy)-3,7-dimethyl-2-octene, a synthetic juvenile hormone mimic of trans,trans,cis-10,11-epoxy-7-ethyl-3,11-dimethyltrideca-2,6-dienoate.[2]
  • To synthesize 1,2,3-diazaphosphinane, 1,2,3-thiazaphosphinine and 1,2-azaphosphole bearing a chromone ring.[3]
  • To synthesize 1-Bromoundec-1-ene from 10-undecen-1-ol.[4]

Pictogramas

CorrosionExclamation mark

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Eye Dam. 1 - Skin Corr. 1B - STOT SE 3

Órgãos-alvo

Respiratory system

Perigos de suplementos

Código de classe de armazenamento

8B - Non-combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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Phosphorus tribromide promoted allylic rearrangement of a tertiary vinyl carbinol. Stereochemistry of the reaction product and application to the synthesis of JH-25, a potent juvenile hormone mimic.
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The Journal of Organic Chemistry, 41(7), 1262-1264 (1976)

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

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