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CAS 21900-40-3

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5-Chloro-2-methylbenzoyl chloride

Description:
5-Chloro-2-methylbenzoyl chloride, with the CAS number 21900-40-3, is an organic compound that belongs to the class of acyl chlorides. It features a benzoyl group substituted with a chlorine atom at the 5-position and a methyl group at the 2-position of the aromatic ring. This compound is typically a colorless to pale yellow liquid with a pungent odor, characteristic of acyl chlorides. It is known for its reactivity, particularly in nucleophilic acyl substitution reactions, where it can react with amines, alcohols, and other nucleophiles to form corresponding amides and esters. The presence of the chlorine atom enhances its electrophilic character, making it a useful intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. Due to its reactive nature, it should be handled with care, as it can cause irritation to the skin, eyes, and respiratory system. Proper safety precautions, including the use of personal protective equipment, are essential when working with this compound.
Formula:C8H6Cl2O
InChI:InChI=1S/C8H6Cl2O/c1-5-2-3-6(9)4-7(5)8(10)11/h2-4H,1H3
InChI key:InChIKey=WKSLUZTZBSDWDE-UHFFFAOYSA-N
SMILES:C(Cl)(=O)C1=C(C)C=CC(Cl)=C1
Synonyms:
  • 5-Chloro-2-methylbenzoyl chloride
  • Benzoyl chloride, 5-chloro-2-methyl-
  • 5-Chloro-o-toluyl chloride
  • o-Toluoyl chloride, 5-chloro-
  • 5-Chloro-o-toluoyl chloride
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