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333565

Sigma-Aldrich

Cyclobutyl chloride

97%

Synonym(s):

Chlorocyclobutane

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About This Item

Empirical Formula (Hill Notation):
C4H7Cl
CAS Number:
1120-57-6
Molecular Weight:
90.55
EC Number:
214-314-2
MDL number:
MFCD00013736
UNSPSC Code:
12352100
PubChem Substance ID:
24860147
NACRES:
NA.22

assay

97%

form

liquid

refractive index

n20/D 1.436 (lit.)

bp

83 °C (lit.)

density

0.991 g/mL at 25 °C (lit.)

functional group

chloro

storage temp.

2-8°C

SMILES string

ClC1CCC1

InChI

1S/C4H7Cl/c5-4-2-1-3-4/h4H,1-3H2

InChI key

STJYMUBZVMSMBP-UHFFFAOYSA-N

General description

Cyclobutyl chloride is formed by rearrangements concerted with fragmentation of cyclopropylmethoxychlorocarbene and cyclobutoxychlorocarbene.[1] The thermal decomposition of cyclobutyl chloride was investigated over the temperature range of 892-1150K using very low-pressure pyrolysis technique.[2]

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

15.8 °F - closed cup

flash_point_c

-9 °C - closed cup

ppe

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

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Certificates of Analysis (COA)

Lot/Batch Number
07020BJ
01109JH
03618DH
11007CH
06701CH

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Competitive unimolecular reactions at low pressures. The pyrolysis of cyclobutyl chloride.
King KD, et al.
International Journal of Chemical Kinetics, 11(1), 11-21 (1979)
Robert A Moss et al.
Journal of the American Chemical Society, 126(27), 8466-8476 (2004-07-09)
Fragmentations of cyclopropylmethoxychlorocarbene (6) and cyclobutoxychlorocarbene (10) lead to rearrangments that afford mixtures of cyclopropylmethyl chloride (7), cyclobutyl chloride (8), and 3-butenyl chloride (9). Isotopic substitution studies show that these rearrangments are accompanied by partial exchange of the methylene groups

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