C112909
2-Cyclopenten-1-one
98%
Synonym(s):
1-Cyclopenten-5-one, 1-Cyclopenten-3-one, 2-Cyclopentenone, Cyclopent-2-en-1-one, Cyclopenten-3-one
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About This Item
Empirical Formula (Hill Notation):
C5H6O
CAS Number:
Molecular Weight:
82.10
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
213-213-0
Beilstein/REAXYS Number:
1446054
MDL number:
Assay:
98%
Form:
liquid
InChI key
BZKFMUIJRXWWQK-UHFFFAOYSA-N
InChI
1S/C5H6O/c6-5-3-1-2-4-5/h1,3H,2,4H2
SMILES string
O=C1CCC=C1
assay
98%
form
liquid
Quality Level
refractive index
n20/D 1.481 (lit.)
bp
64-65 °C/19 mmHg (lit.)
density
0.98 g/mL at 25 °C (lit.)
storage temp.
2-8°C
Related Categories
Application
Versatile electrophile employed in a variety of addition reactions including conjugate addition of organocopper nucleophiles, Michael reaction with silyl enol ethers, and siloxanes, Diels-Alder cycloadditions, and phosphoniosilylations.
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Xiaoxun Li et al.
Organic letters, 14(6), 1584-1587 (2012-03-03)
Functionalized cyclopentenones were synthesized by a Rh-catalyzed carbonylation of 3-acyloxy-1,4-enynes, derived from alkynes and α,β-unsaturated aldehydes. The reaction involved a Saucy-Marbet 1,3-acyloxy migration of propargyl esters and a [4 + 1] cycloaddition of the resulting acyloxy substituted vinylallene with CO.
Brett D Schwartz et al.
Organic letters, 15(8), 1934-1937 (2013-04-05)
The title natural product, 1, has been synthesized in 20 steps from the enantiomerically pure cis-1,2-dihydrocatechol 2, itself obtained through the whole-cell biotransformation of toluene. The pivotal steps in the reaction sequence involve a Diels-Alder cycloaddition reaction between diene 2
Jesse R Poganik et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 33(12), 14636-14652 (2019-11-02)
The nuclear factor erythroid 2-related factor 2 (Nrf2) signaling axis is a target of covalent drugs and bioactive native electrophiles. However, much of our understanding of Nrf2 regulation has been focused at the protein level. Here we report a post-transcriptional
Filippo De Simone et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(51), 14527-14538 (2011-11-25)
The Nazarov cyclization of divinyl ketones gives access to cyclopentenones. Replacing one of the vinyl groups by a cyclopropane leads to a formal homo-Nazarov process for the synthesis of cyclohexenones. In contrast to the Nazarov reaction, the cyclization of vinyl-cyclopropyl
Tetrahedron Letters, 34, 6777-6777 (1993)
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