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139033

Sigma-Aldrich

2-Chloro-5-nitrobenzaldehyde

97%

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About This Item

Linear Formula:
ClC6H3(NO2)CHO
CAS Number:
Molecular Weight:
185.56
Beilstein:
743764
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

97%

mp

75-77 °C (lit.)

SMILES string

[H]C(=O)c1cc(ccc1Cl)[N+]([O-])=O

InChI

1S/C7H4ClNO3/c8-7-2-1-6(9(11)12)3-5(7)4-10/h1-4H

InChI key

VFVHWCKUHAEDMY-UHFFFAOYSA-N

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General description

2-Chloro-5-nitrobenzaldehyde undergoes condensation reaction with 2-methyl-1-propenylbenzimidazole to yield (E,Z)-2-(2-chloro-5-nitrostyryl)-1-(1-propenyl)benzimidazole. It reacts with 5-aminopyrazoles to yield symmetrical bispyrazolo[3,4-]pyridines.

Application

2-Chloro-5-nitrobenzaldehyde was used in the synthesis of 5-nitro-2-(1H-pyrrol-1-yl)benzaldehyde.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Reactions of 5-amino-1, 2-azoles with aromatic and heterocyclic o-chloroaldehydes:[1+ 1] versus [2+ 1] cyclocondensation.
Abramov MA, et al.
Tetrahedron, 57(44), 9123-9129 (2001)
D E Bacelo et al.
Acta crystallographica. Section C, Crystal structure communications, 53 ( Pt 7), 907-909 (1997-07-15)
The title compound, C18H14ClN3O2, was synthesized by the condensation of 2-chloro-5-nitrobenzaldehyde with 2-methyl-1-propenylbenzimidazole, and the molecule comprises a 2-chloro-5-nitrobenzene and a 1-(Z)-propenylbenzimidazole. The two aromatic moieties are conjugated through the vinyl group. The dihedral angle between the two rings is
Morita-Baylis-Hillman route to 4H-pyrrolo [1, 2-a][1] benzazepine derivatives.
Park SP, et al.
Tetrahedron, 65(24), 4703-4708 (2009)

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