ОКСИМ ХЛОРАЦЕТАЛЬДЕГИДА

Description

Chloroacetaldehyde oxime is a condensation product of chloroacetaldehyde with hydroxylamine, containing the C=N-OH group characteristic of oximes and a chloromethyl fragment inherited from the original aldehyde. The compound belongs to the class of intermediate pesticides: it is used not as the final active ingredient, but as a building block for the synthesis of more complex molecules, where a reactive unit “oxime + mobile chlorine” is needed.

Basic Attributes

• CAS No: 51451-05-9
• Chemical formula: C2H4ClNO
• English name: Chloroacetaldehyde oxime
• Molecular weight: 93.51226; exact weight: 92.99810
• DSSTox ID: DTXSID60722135
• HS code: 2928000090
• PSA specifications: 32.6
• XLogP3: 0.68520

Chemical properties

The oxime group makes the molecule able to exist in the form of E/Z isomers and easily enter into dehydration reactions to form nitriles, and also serve as a precursor of nitrile oxides for 1,3-dipolar cycloaddition reactions - the classical way of constructing isoxazoline and isoxazole heterocycles. The chlorine atom at the neighboring carbon atom remains mobile and is capable of being replaced by nucleophiles regardless of the transformations of the oxime group, which provides two points for further modification of the molecule in synthesis.

Scope of application

Intermediate for the production of pesticides and other biologically active substances containing a heterocyclic moiety derived from the oxime function. It is used in laboratory and industrial organic synthesis as a building block for introducing nitrogen-containing rings into the structure of the target molecule; It does not exhibit an independent pesticide effect and is not used in finished formulations.

Data missing from the source

The manufacturer does not provide melting and boiling points, density, refractive index, solubility, toxicity data, transport codes and GHS classification for this substance - the safety data sheet for these parameters is not in the original dump, so such values ​​are not given here to avoid unreliable data.

Storage and handling

Like most aliphatic oximes with a mobile chlorine atom, the substance should be stored in an airtight container, in a cool, dry place, away from sources of moisture and strong nucleophiles/bases that can cause premature chlorine substitution or hydrolysis of the oxime group. In the absence of official data on toxicity and flammability, the substance should be handled as a reactive intermediate product of organic synthesis: use skin, eye and respiratory protection, and work in a fume hood.

Identification and classification

Classification into the section “Intermediate pesticides” reflects the role of the substance in the production chain: it is not a finished active ingredient, but serves as a raw material for the synthesis of active ingredients of agrochemicals. The chemical formula C2H4ClNO and molecular weight 93.51226 allow the compound to be unambiguously identified according to CAS 51451-05-9 when purchasing and quality control of raw materials.