ChemicalBook > CAS DataBase List > 1-Pyrrolidino-1-cyclopentene

1-Pyrrolidino-1-cyclopentene

Product Name
1-Pyrrolidino-1-cyclopentene
CAS No.
7148-07-4
Chemical Name
1-Pyrrolidino-1-cyclopentene
Synonyms
1-(Cyclopent-1-en-1-yl)pyrrolidine;Cyclopentenylpyrrolidine;1-Pyrrolidinocyclopentene;1-Pyrrolizinocyclopentene;1-Cyclopentenylpyrrolidine;1-PYRROLIDINO-1-CYCLOPENTENE;1-PYRROLIDINE-1-CYCLOPENTENE;1-Pyrrolizino-1-cyclopentene;Pyrrolidine, 1-cyclopentenyl-;1-(1-PYRROLIDINO)CYCLOPENTENE
CBNumber
CB3692970
Molecular Formula
C9H15N
Formula Weight
137.22
MOL File
7148-07-4.mol
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1-Pyrrolidino-1-cyclopentene Property

Boiling point:
100-110 °C/15 mmHg (lit.)
Density 
0.941 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.5155(lit.)
Flash point:
116 °F
storage temp. 
2-8°C
form 
Liquid
pka
8.90±0.20(Predicted)
color 
Clear yellow
BRN 
109824
CAS DataBase Reference
7148-07-4(CAS DataBase Reference)
NIST Chemistry Reference
Pyrrolidine, 1-(1-cyclopenten-1-yl)-(7148-07-4)
EPA Substance Registry System
Pyrrolidine, 1-(1-cyclopenten-1-yl)- (7148-07-4)
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Safety

Hazard Codes 
Xi,Xn
Risk Statements 
10-36/37/38-20/21/22
Safety Statements 
16-26-36/37/39-37/39
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
TSCA 
Y
HazardClass 
3
PackingGroup 
III
HS Code 
29339900
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
149446
Product name
1-Pyrrolidino-1-cyclopentene
Purity
98%
Packaging
10g
Price
$49.41
Updated
2025/07/31
Sigma-Aldrich
Product number
149446
Product name
1-Pyrrolidino-1-cyclopentene
Purity
98%
Packaging
50g
Price
$261
Updated
2025/07/31
TCI Chemical
Product number
P1001
Product name
1-Pyrrolidino-1-cyclopentene
Purity
>97.0%(GC)
Packaging
5g
Price
$48
Updated
2025/07/31
TCI Chemical
Product number
P1001
Product name
1-Pyrrolidino-1-cyclopentene
Purity
>97.0%(GC)
Packaging
25g
Price
$145
Updated
2025/07/31
TRC
Product number
P998995
Product name
1-Pyrrolidino-1-cyclopentene
Packaging
5g
Price
$165
Updated
2021/12/16
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1-Pyrrolidino-1-cyclopentene Chemical Properties,Usage,Production

Chemical Properties

Clear yellow liquid

Uses

1-pyrrolidino-1-cyclopentene was used in the synthesis of halichlorine, pinnaic acid, and tauropinnaic acid.

Synthesis Reference(s)

Journal of the American Chemical Society, 78, p. 1482, 1956 DOI: 10.1021/ja01588a056

Synthesis

The most commonly used method of preparation for 1-Pyrrolidino-1-cyclopentene is the acid-catalyzed condensation of a secondary amine with cyclopentanone (eq 1).

storage

1-Pyrrolidino-1-cyclopentene readily reacts with water or atmospheric oxygen; should be stored under dry nitrogen.

1-Pyrrolidino-1-cyclopentene Preparation Products And Raw materials

Raw materials

Preparation Products

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1-Pyrrolidino-1-cyclopentene Suppliers

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