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Sigma-Aldrich

2-Pyrrolidinone

≥99%

Synonym(s):

2-Pyrrolidone, Butyrolactam

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About This Item

Empirical Formula (Hill Notation):
C4H7NO
CAS Number:
616-45-5
Molecular Weight:
85.10
Beilstein:
105241
EC Number:
210-483-1
MDL number:
MFCD00005270
UNSPSC Code:
12352100
PubChem Substance ID:
24854414
NACRES:
NA.22

vapor density

2.9 (vs air)

Assay

≥99%

form

solid

refractive index

n20/D 1.487 (lit.)

bp

245 °C (lit.)

mp

23-25 °C (lit.)

solubility

benzene: miscible(lit.)
carbon disulfide: miscible(lit.)
chloroform: miscible(lit.)
diethyl ether: miscible(lit.)
ethanol: miscible(lit.)
ethyl acetate: miscible(lit.)
water: miscible(lit.)

density

1.12 g/mL at 25 °C (lit.)

SMILES string

O=C1CCCN1

InChI

1S/C4H7NO/c6-4-2-1-3-5-4/h1-3H2,(H,5,6)

InChI key

HNJBEVLQSNELDL-UHFFFAOYSA-N

Gene Information

rat ... Gabra2(29706)

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General description

The FT-IR spectra of the hydrogen bonding lactam 2-pyrrolidinone in CCl4 was studied.

Application

2-Pyrrolidinone is used as a starting material in the synthesis of polyvinylpyrrolidone (PVP), (±)-tashiromine, (±)-tetraponerine T4, (+)-ricciocarpins A and B.

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Danger

Hazard Statements

H319,H360D

Hazard Classifications

Eye Irrit. 2 - Repr. 1B

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Photocatalyzed degradation of polymers in aqueous semiconductor suspensions: V. Photomineralization of lactam ring-pendant polyvinylpyrrolidone at titania/water interfaces.
Horikoshi S, et al.
Journal of Photochemistry and Photobiology A: Chemistry, 138(1), 69-77 (2001)
Electrophilic Activation of Lactams with Tf2O and Pyridine: Expedient Synthesis of (?)-Tetraponerine T4.
Charette A B, et al.
Organic Letters, 7(24), 5401-5404 (2005)
Application of enantioselective radical reactions: synthesis of (+)-ricciocarpins A and B.
Sibi MP and He L
Organic Letters, 6(11), 1749-1752 (2004)
Intramolecular Additions of Various ?-Nucleophiles to Chemoselectively Activated Amides and Application to the Synthesis of (?)-Tashiromine.
Belanger G, et al.
The Journal of Organic Chemistry, 71(2), 704-712 (2006)
Ryo Shintani et al.
Chemical communications (Cambridge, England), 48(79), 9936-9938 (2012-09-01)
A palladium-catalyzed asymmetric synthesis of 2-pyrrolidinones with a quaternary stereocenter at the 3-position has been achieved by the reaction of γ-methylidene-δ-valerolactones with alkyl isocyanates. High enantioselectivity has been realized by employing a newly synthesized chiral phosphoramidite ligand.
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