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111910

Sigma-Aldrich

2-Chlorotoluene

99%

Synonym(s):

1-chloro-2-methylbenzene

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About This Item

Linear Formula:
CH3C6H4Cl
CAS Number:
95-49-8
Molecular Weight:
126.58
Beilstein:
1904175
EC Number:
202-424-3
MDL number:
MFCD00000562
UNSPSC Code:
12352100
eCl@ss:
39050205
PubChem Substance ID:
24847049
NACRES:
NA.22

vapor density

4.38 (vs air)

vapor pressure

10 mmHg ( 43 °C)

Assay

99%

form

liquid

refractive index

n20/D 1.525 (lit.)

bp

157-159 °C (lit.)

mp

−36 °C (lit.)

solubility

H2O: soluble

density

1.083 g/mL at 25 °C (lit.)

SMILES string

Cc1ccccc1Cl

InChI

1S/C7H7Cl/c1-6-4-2-3-5-7(6)8/h2-5H,1H3

InChI key

IBSQPLPBRSHTTG-UHFFFAOYSA-N

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General description

2-Chlorotoluene can be mineralized completely by Rhodococcus, strain OCT 10 DSM 45596(T). It is used in the preparation of 3-chloro-4-methylcatechol and 4-chloro-3-methylcatechol. The oxidation of 2-chlorotoluene is very well catalyzed by the enzymes: toluene dioxygenase of P. putida F1 and chlorobenzene dioxygenase from Burkholderia, strain PS12.

Application

2-Chlorotoluene can be used as a precursor to synthesize aryl coupling products via palladium-catalyzed Negishi cross-coupling. It can also be used in the Buchwald-Hartwig amination to synthesize arylamines.

Signal Word

Warning

Hazard Statements

H226,H332,H361d,H410

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Flam. Liq. 3 - Repr. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

109.4 °F - closed cup

Flash Point(C)

43 °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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Flexible Steric Bulky Bis (Imino) acenaphthene (BIAN)-Supported N-Heterocyclic Carbene Palladium Precatalysts: Catalytic Application in Buchwald?Hartwig Amination in Air.
Lan X B, et al.
The Journal of Organic Chemistry, 82(6), 2914-2925 (2017)
NIXANTPHOS: A Highly Active Ligand for Palladium Catalyzed Buchwald-Hartwig Amination of Unactivated Aryl Chlorides.
Mao J, et al.
Dalton Transactions, (26) (2018)
A Lehning et al.
Applied and environmental microbiology, 63(5), 1974-1979 (1997-05-01)
The degradation of toluene by Pseudomonas putida F1 and of chlorobenzenes by Burkholderia sp. strain PS12 is initiated by incorporation of dioxygen into the aromatic nucleus to form cis-dihydrodihydroxybenzenes. Toluene-grown cells of P. putida F1 and 3-chlorobenzoate-grown cells of Burkholderia
The first general method for palladium-catalyzed Negishi cross-coupling of aryl and vinyl chlorides: use of commercially available Pd (P (t-Bu) 3) 2 as a catalyst
Dai C, et al.
Journal of the American Chemical Society, 123(12), 2719-2724 (2001)
M A Haro et al.
Journal of biotechnology, 85(2), 103-113 (2001-02-13)
In this article, we illustrate the challenges and bottlenecks in the metabolic engineering of bacteria destined for environmental bioremediation, by reporting current efforts to construct Pseudomonas strains genetically designed for degradation of the recalcitrant compound 2-chlorotoluene. The assembled pathway includes
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