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220868

Sigma-Aldrich

1-Acetoxy-1,3-butadiene

mixture of cis and trans

Sinonimo/i:

1,3-Butadienyl acetate

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About This Item

Formula condensata:
CH2=CHCH=CHOCOCH3
Numero CAS:
1515-76-0
Peso molecolare:
112.13
Beilstein:
1743394
Numero MDL:
MFCD00008714
Codice UNSPSC:
12352100
ID PubChem:
24853196
NACRES:
NA.22

Tensione di vapore

40 mmHg ( 60 °C)

Forma fisica

liquid

contiene

0.1% p-tert-butylcatechol as stabilizer

Indice di rifrazione

n20/D 1.469 (lit.)

P. eboll.

60-61 °C/40 mmHg (lit.)

Densità

0.945 g/mL at 25 °C (lit.)

Temperatura di conservazione

2-8°C

Stringa SMILE

CC(=O)O\C=C\C=C

InChI

1S/C6H8O2/c1-3-4-5-8-6(2)7/h3-5H,1H2,2H3/b5-4+
NMQQBXHZBNUXGJ-SNAWJCMRSA-N

Descrizione generale

1-Acetoxy-1,3-butadiene (1-ABD) can be generated by potassium or sodium acetate catalyzed reaction between crotonaldehyde and acetic anhydride. The product is a mixture of cis and trans forms, that has been confirmed by its physical properties and IR spectra. It is reported to be formed as a major product during the acetoxylation of 1,3-butadiene (BD) in gas-phase in the presence of Pd-KOAc (palladium-potassium acetate) catalyst. 1-ABD participates as 2Π or 4Π diene in cycloaddition reactions. Enantioselective Diels Alder reaction of 2-methoxy-5-methyl-1,4-benzoquinone with 1-ABD in the presence of molecular sieves (mesh size:4Å) has been reported.

Applicazioni

1-Acetoxy-1,3-butadiene was used as diene in the following reactions:
  • Diels-Alder reaction with ortho-carbazolequinones to yield benzocarbazolequinone.
  • Diels-Alder reaction with diethyl ketovinylphosphonate, with and without Lewis acid assistance.
  • Diels-Alder reaction with methyl acrylate to yield racemic forms of 2-hydroxy-3-cyclohexenecarboxylic acid.

It was used for the reaction with dienophiles such as maleimides, a juglone, a butyne-1,4-dione and methyl 2-(4-methylphenyl)-2H-azirine-3-carboxylate and during visible light photocatalysis. It was also used as reactant during intermolecular oxa-Pictet-Spengler cyclization.

Pittogrammi

FlameSkull and crossbones
GHS02,GHS06

Avvertenze

Danger

Indicazioni di pericolo

H226,H302,H311,H315,H319,H335

Classi di pericolo

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

91.4 °F - closed cup

Punto d’infiammabilità (°C)

33 °C - closed cup

Dispositivi di protezione individuale

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

Certificati d'analisi (COA)

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Synthesis and absolute configuration of the isomers of homoisocitric acid (1-hydroxy-1,2,4-butanetricarboxylic acid) and the stereochemistry of lysine biosynthesis.
K Chilina et al.
Biochemistry, 8(7), 2846-2855 (1969-07-01)
Journal of the Chemical Society. Perkin Transactions 1, 1925-1925 (1993)
Muriel Compain-Batissou et al.
Chemical & pharmaceutical bulletin, 52(9), 1114-1116 (2004-09-02)
Oxidation of 2- and 3-hydroxycarbazoles with Frémy's salt gave the corresponding ortho-carbazolequinones. These molecules react as carbodienophiles in Diels-Alder reaction with 1-acetoxy-1,3-butadiene and 1,3-cyclopentadiene to provide the novel benzocarbazolequinone structures 15, 16, 18 and 19.
Gas phase acetoxylation of 1, 3-butadiene over palladium catalysts Part 1: the catalytic activity and structure of Pd-Sb-KOAc catalysts.
Shinohara H.
Applied Catalysis, 10(1), 27-42 (1984)
Intra- and Intermolecular Oxa-Pictet-Spengler Cyclization Strategy for the Enantioselective Synthesis of Deoxy Analogues of (+)-Nanomycin A Methyl Ester, (+)-Eleutherin, (+)-Allo-Eleutherin, and (+)-Thysanone
R. T. Sawant, et al.
European Journal of Organic Chemistry, 23, 4442-4449 (2010)
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Articoli

Diels–Alder Reaction

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. Since the reaction involves the formation of a cyclic product via a cyclic transition state, it is also referred to as a "cycloaddition".

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