Methyl oxalyl chloride

• Catalog No.: L13258
• CAS Number: 5781-53-3
• M. F.: C3H3ClO3
• M. W.: 122.50712
• Purity: 97%

SYNONYMS

• Title: 甲基草酰氯
• IUPAC name: methyl 2-chloro-2-oxoacetate
• IUPAC Traditional name: methyl 2-chloro-2-oxoacetate
• Synonyms: Methyl chloroglyoxylate

DATABASE IDS

• CAS Number: 5781-53-3
• Beilstein Number: 1071541
• MDL Number: MFCD00000705
• EC Number: 227-307-4

PROPERTIES

• Purity: 97%
• Boiling Point: 115-118°C
• Density: 1.332
• Flash Point: 46°C(114°F)
• Refractive Index: 1.4190
• GHS Hazard statements: H301-H314-H318-H226
• European Hazard Symbols: X
• European Hazard Symbols: Corrosive (C)
• GHS Precautionary statements: P210-P301+P310-P303+P361+P353-P305+P351+P338-P405-P501A
• Risk Statements: 10-14-22-34
• Safety Statements: 26-36/37/39-45
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是
• Hazard Class: 8
• UN Number: UN2920
• Packing Group: II

REFERENCES

• A useful synthesis of isocyanates has been described involving oxidation of monoamides of oxalic acid (prepared from methyl oxalyl chloride and a primary amine) with peroxydisulfate catalyzed by Ag and Cu salts: J. Org. Chem., 60, 5430 (1995):
  
• For other examples of reactions of monoesters of oxalyl chloride, see Ethyl oxalyl chloride, A14653.