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Merck

294985

Sigma-Aldrich

Allene

≥95%

Sinónimos:

Propadiene

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About This Item

Fórmula lineal:
H2C=C=CH2
Número de CAS:
Peso molecular:
40.06
Beilstein/REAXYS Number:
1730774
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

1.42 (20 °C, vs air)

vapor pressure

6795 mmHg ( 21 °C)

assay

≥95%

expl. lim.

13 %

bp

−34 °C (lit.)

mp

−136 °C (lit.)

SMILES string

C=C=C

InChI

1S/C3H4/c1-3-2/h1-2H2

InChI key

IYABWNGZIDDRAK-UHFFFAOYSA-N

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Application

  • Allene is extensively used in a variety of photochemical, thermal, and transition metal-mediated cycloadditions.
  • It can be lithiated to obtain allenyllithium which reacts with alkyl halides to afford terminal allenes.
  • Additional application includes the preparation of reagents such as isopropenylsilanes and isopropenylstannanes by reacting with stannyl and silyl cuprates respectively.

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Other Notes

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Optional

also commonly purchased with this product

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Descripción
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hose barb

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purge valve

Referencia del producto
Descripción
Precios

pictograms

FlameGas cylinder

signalword

Danger

hcodes

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class

2A - Gases

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Los clientes también vieron

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Bienfait B, et al.
Tetrahedron, 47(38), 8167-8176 (1991)
Versatile allene and carbon dioxide equivalents for the Diels-Alder reaction.
Bonjouklian R and Ruden R A
The Journal of Organic Chemistry, 42(25), 4095-4103 (1977)
Cale D Weatherly et al.
Organic letters, 14(7), 1704-1707 (2012-03-22)
The synthesis of 1,3-diaminated stereotriads via the bis-aziridination of allenes is reported. The reactive 1,4-diazaspiro[2.2]pentane intermediates undergo a mild Brønsted acid-promoted rearrangement to yield 1,3-diaminated ketones in good yields with excellent stereocontrol. Directed reduction of the ketone can be achieved
Fanke Meng et al.
Organic letters, 15(6), 1414-1417 (2013-03-07)
Two types of NHC-Cu complexes catalyze protoborations of terminal allenes to afford valuable 1,1- or trisubstituted vinylboron species with high site selectivity and stereoselectivity. The scope of the method, application to natural product synthesis, and mechanistic basis for the observed
Anthony Pitaval et al.
Organic letters, 15(17), 4580-4583 (2013-08-22)
Gold(I)-catalyzed allene-vinylcyclopropane cycloisomerization leads to the tricyclic framework of the protoilludanes in a single step by a reaction that involves a cyclopropane ring expansion and a Prins cyclization.

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