Synonyms: Ethanedioyl dichloride
CAS Number: 79-37-8
Formula: C2Cl2O2
Formula Weight: 126.93
Linear Formula: ClCOCOCl
MDL No.: MFCD00000704
Purity: >=99%
Boiling Point: 62-65 C(lit.)
Melting Point: -10--8 C (lit.)
Density: 1.5 g/mL at 20 C(lit.)
Refractive Index: n20/D 1.429(lit.)
Beilstein Registry Number: 1361988
EC Number: 201-200-2
UNSPSC Code: 12352000
General description: Oxalyl chloride is a commonly used chlorinating reagent that can be prepared by the reaction of oxalic acid and phosphorus pentachloride.
Application: Oxalyl chloride may be used in the following processes: . Preparation of Mosher′s acid chloride by reacting with Mosher′s acid in the presence of DMF.. Activation of dimethyl sulfoxide for use in the oxidation of long-chain alcohols to carbonyls.. Activation of α-keto carboxylic acids and N-heterocyclic carboxylic acids for alkynylation to form ynediones and N-heterocyclic ynones, respectively.
Application: Reactant involved in:. Synthesis of N-heterocyclic ynones and ynediones, used to activate carboxylic acids. Chlorination and halogenation. Three-component [3+2] cycloadditions. Reactions with organostannanes. Synthesis of cyclopentenones. Carbonylations, used as a carbonyl synthon
Application: Suitable for the synthesis of acid chlorides used to produce liquid crystals.
RIDADR: UN 2922 6.1(8) / PGI
WGK Germany: 2
R Codes: 14-23-29-34-37
S Codes: 26-36/37/39-45
IOD Codes: T
Symbol: GHS05, GHS06
Signal Word: Danger
Hazard Statements: H314-H331-H335
Precautionary statements: P261-P280-P305 + P351 + P338-P310