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Sigma-Aldrich

4-Pentynoic acid

95%

Sinonimo/i:

Propargylacetic acid

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55,50 €
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204,00 €

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55,50 €
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204,00 €

About This Item

Formula condensata:
CH≡CCH2CH2COOH
Numero CAS:
Peso molecolare:
98.10
Beilstein:
1742047
Numero CE:
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.22

55,50 €


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Livello qualitativo

Saggio

95%

Stato

solid

P. ebollizione

110 °C/30 mmHg (lit.)

Punto di fusione

54-57 °C (lit.)

Gruppo funzionale

carboxylic acid

Temperatura di conservazione

2-8°C

Stringa SMILE

OC(=O)CCC#C

InChI

1S/C5H6O2/c1-2-3-4-5(6)7/h1H,3-4H2,(H,6,7)
MLBYLEUJXUBIJJ-UHFFFAOYSA-N

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Descrizione generale

4-Pentynoic acid undergoes copper-catalyzed intramolecular cyclizations to form enol lactones[1]. It also reacts with 1-bromo-1-alkynes in the presence of a Pd catalyst to yield biologically active ynenol lactones[2].

Applicazioni

4-Pentynoic acid was used:
  • as building block for the synthesis of library of eight sequence-defined model oligomers[3]
  • in one-pot synthesis of the complex polycyclic heterocycles benzo[4,5]imidazo[1,2-c]pyrrolo[1,2-a]quinazolinone derivatives[4]
  • in the synthesis of various allenenols lactones [5(E)-(2-allenylidene)-tetrahydro-2-furanones][5]
  • in the synthesis of a cyctotoxic macrolide by ring-closing metathesis of a bis acetylene[6]

Pittogrammi

Corrosion

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Skin Corr. 1B

Codice della classe di stoccaggio

8A - Combustible corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Certificati d'analisi (COA)

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1 of 3

Palladium-catalyzed synthesis of new unsaturated exo-enol lactones with potential biological activity.
Bouyssi D, et al.
Tetrahedron Letters, 34(19), 3129-3130 (1993)
Thomas L Mindt et al.
The Journal of organic chemistry, 72(26), 10247-10250 (2007-11-30)
Alkynoic acids, in particular, 4-pentynoic acid derivatives, undergo intramolecular cyclizations to enol lactones under reaction conditions typically applied for the Cu(I)-catalyzed cycloaddition of terminal alkynes and azides (click chemistry). Starting from appropriate alkynoic acid derivatives, either enol lactones or 1,2,3-triazole
Thanh Tam Trinh et al.
Macromolecular rapid communications, 35(2), 141-145 (2013-12-18)
A library of eight sequence-defined model oligomers, whose sequence is based on a (0,1) binary code, is prepared through chemoselective repeating cycles of amidification and copper-assisted alkyne-azide cycloaddition reactions from a non-modified Wang resin. This library is constructed from two
Xun Ji et al.
The Journal of organic chemistry, 78(9), 4312-4318 (2013-04-06)
An efficient and facile Au(I)/Ag(I)-catalyzed cascade method has been developed for one-pot synthesis of the complex polycyclic heterocycles benzo[4,5]imidazo[1,2-c]pyrrolo[1,2-a]quinazolinone derivatives through treatment of the substituted 2-(1H-benzo[d]imidazol-2-yl)anilines with 4-pentynoic acid or 5-hexynoic acid. The strategy features a Au(I)/Ag(I)-catalyzed one-pot cascade process
Xin Zhou et al.
Acta biomaterialia, 54, 128-137 (2017-03-13)
Wound healing dressings are increasingly needed clinically due to the large number of skin damage annually. Nitric oxide (NO) plays a key role in promoting wound healing, thus biomaterials with NO-releasing property receive increasing attention as ideal wound dressing. In

Articoli

Click chemistry, and the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) in particular, is a powerful new synthetic tool in polymer chemistry and material science.

Domande

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

    1 risposta
    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 risposta
    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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