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HomeProduct name list2-Chlorobenzaldehyde

2-Chlorobenzaldehyde

Synonym(s):2-Chlorobenzaldehyde

  • CAS NO.:89-98-5
  • Empirical Formula: C7H5ClO
  • Molecular Weight: 140.57
  • MDL number: MFCD00003304
  • EINECS: 201-956-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-08-21 22:41:43
2-Chlorobenzaldehyde  Structural

What is 2-Chlorobenzaldehyde ?

Chemical properties

2-Chlorobenzaldehyde is a colorless to yellowish liquid with a penetrating odor. Insoluble in water, soluble in benzene, alcohol and ether. 2-Chlorobenzaldehyde is considerably more resistant to oxidation than benzaldehyde. When it is heated with sodium sulfite solution under pressure, benzaldehyde-2-sulfonic acid forms.

The Uses of 2-Chlorobenzaldehyde

2-Chlorobenzaldehyde has been used in generation of small focused library of diversely functionalized dihydropyrimidine derivatives via one-pot three-component Biginelli cyclocondensation of β-ketoesters, aldehydes and thioureas.

The Uses of 2-Chlorobenzaldehyde

2-Chlorobenzaldehyde can be used to make alcohols, acids, and dyes; used in the rubber, tanning, and paper industries; used as an intermediate for optical brighteners, agricultural chemicals, and pharmaceuticals.It can also be used to prepare triphenyl methane and related dyes, organic intermediate.

Preparation

2-Chlorobenzaldehyde is produced mainly by chlorination of 2-chlorotoluene to form 2-chlorobenzal chloride, which is then subjected to acid hydrolysis. Metal salts, such as iron(III) chloride, are used as catalysts. The hydrolysis can also be accomplished using formic acid without a catalyst.
2-Chlorobenzaldehyde can also be produced by oxidation of 2-chlorobenzyl chloride with N-oxides of tertiary amines or with dilute nitric acid.
https://pubchem.ncbi.nlm.nih.gov/compound/2-Chlorobenzaldehyde

What are the applications of Application

2-Chlorobenzaldehyde is used acid zinc plating brightener, also be used for organic synthesis, agricultural pesticide and pharmaceutical industries. It is used to synthesize the acaricides clofentezine and flutenzine. 2-Chlorobenzaldehyde undergoes alkynylation with phenylacetylene in the presence of catalytic ligands and dimethylzinc at 0°C to form binaphthyl-derived amino alcohols.

Synthesis Reference(s)

Tetrahedron Letters, 34, p. 8037, 1993 DOI: 10.1016/S0040-4039(00)61444-2

General Description

2-chlorobenzaldehyde is a clear colorless to yellowish liquid. (NTP, 1992)

Air & Water Reactions

2-Chlorobenzaldehyde is moisture and light sensitive. Slightly water soluble.

Reactivity Profile

2-Chlorobenzaldehyde reacts with iron and strong oxidizers, strong bases and strong reducing agents.

Health Hazard

Symptoms of exposure to 2-Chlorobenzaldehyde may include skin, eye and upper respiratory tract irritation. This compound may cause skin, eye and respiratory tract irritation. When heated to decomposition it emits toxic fumes.

Fire Hazard

2-Chlorobenzaldehyde is combustible.

Safety Profile

Poison by intraperitoneal and intravenous routes. When heated to decomposition it emits toxic fumes of Cl-. See also ALDEHYDES and CHLORIDES.

Purification Methods

Wash it with 10% Na2CO3 solution, then fractionally distil it in the presence of a small amount of catechol as stabiliser. [Beilstein 7 H 233, 7 IV 561.]

Properties of 2-Chlorobenzaldehyde

Melting point: 9-11 °C (lit.)
Boiling point: 209-215 °C (lit.)
Density  1.248 g/mL at 25 °C (lit.)
vapor density  4.84 (vs air)
vapor pressure  1.27 mm Hg ( 50 °C)
refractive index  n20/D 1.566(lit.)
Flash point: 190 °F
storage temp.  Store in RT
solubility  1.8g/l
form  Liquid
color  Clear colorless to light yellow
PH 2.9 (H2O)(saturated aqueous solution)
Water Solubility  0.1-0.5 g/100 mL at 24 ºC
Sensitive  Air Sensitive
BRN  385877
Stability: Stable. Combustible. Incompatible with strong oxidizing agents, strong bases, iron, strong reducing agents. Moisture and light-sensitive.
CAS DataBase Reference 89-98-5(CAS DataBase Reference)
NIST Chemistry Reference Benzaldehyde, 2-chloro-(89-98-5)
EPA Substance Registry System 2-Chlorobenzaldehyde (89-98-5)

Safety information for 2-Chlorobenzaldehyde

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P301+P330+P331:IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 2-Chlorobenzaldehyde

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