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Merck

261947

Sigma-Aldrich

1,4-Bis(diphenylphosphin)butan

98%

Synonym(e):

dppb

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About This Item

Lineare Formel:
(C6H5)2P(CH2)4P(C6H5)2
CAS-Nummer:
Molekulargewicht:
426.47
Beilstein:
706446
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352002
PubChem Substanz-ID:
NACRES:
NA.22
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Qualitätsniveau

Assay

98%

Form

solid

Eignung der Reaktion

reagent type: ligand
reaction type: Alkylations

reagent type: ligand
reaction type: Heck Reaction

reagent type: ligand
reaction type: Isomerizations

reagent type: ligand
reaction type: Negishi Coupling

reagent type: ligand
reaction type: Sonogashira Coupling

reagent type: ligand
reaction type: Stille Coupling

reagent type: ligand
reaction type: Suzuki-Miyaura Coupling

mp (Schmelzpunkt)

132-136 °C (lit.)

Funktionelle Gruppe

phosphine

SMILES String

C(CCP(c1ccccc1)c2ccccc2)CP(c3ccccc3)c4ccccc4

InChI

1S/C28H28P2/c1-5-15-25(16-6-1)29(26-17-7-2-8-18-26)23-13-14-24-30(27-19-9-3-10-20-27)28-21-11-4-12-22-28/h1-12,15-22H,13-14,23-24H2

InChIKey

BCJVBDBJSMFBRW-UHFFFAOYSA-N

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Anwendung

Employed as a ligand in Pd(0)-catalyzed acylcyanation of arylacetylenes[1] and deprotection of allyloxycarbamates.[2]

Piktogramme

Exclamation mark

Signalwort

Warning

Gefahreneinstufungen

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Zielorgane

Respiratory system

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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Analysenzertifikate (COA)

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Die Dokumentenbibliothek aufrufen

Celisnolia M Leite et al.
Anti-cancer agents in medicinal chemistry, 21(9), 1172-1182 (2020-08-26)
Breast cancer is one of the most common types among women. Its incidence progressively increases with age, especially after age 50. Platinum compounds are not efficient in the treatment of breast cancer, highlighting the use of other metals for the
Lin, I. J. B.; Alper, H.
Journal of the Chemical Society. Chemical Communications, 248-248 (1989)
The Journal of Organic Chemistry, 59, 2679-2679 (1994)
Trost, B. M.; Lautens, M. et al.
Journal of the American Chemical Society, 106, 7641-7641 (1984)
Pinjing He et al.
Biotechnology for biofuels, 12, 289-289 (2020-01-01)
Anaerobic digestion of easily degradable biowaste can lead to the accumulation of volatile fatty acids, which will cause environmental stress to the sensitive methanogens consequently. The metabolic characteristics of methanogens under acetate stress can affect the overall performance of mixed

Questions

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  1. 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

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  2. 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

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