343935

4-Chlorobutyryl chloride

technical grade, 95%

• Linear Formula: Cl(CH₂)₃COCl
• CAS Number: 4635-59-0
• Molecular Weight: 141.00
• Beilstein: 773860
• EC Number: 225-059-1
• MDL number: MFCD00000754
• PubChem Substance ID: 24861217
• NACRES: NA.22

Properties

• grade: technical grade
• Quality Level: 100
• vapor pressure: 3 mmHg ( 20 °C)
• assay: 95%
• form: liquid
• autoignition temp.: 824 °F
• refractive index: n20/D 1.461 (lit.)
• bp: 173-174 °C (lit.)
• density: 1.26 g/mL at 25 °C (lit.)
• SMILES string: ClCCCC(Cl)=O
• InChI: 1S/C4H6Cl2O/c5-3-1-2-4(6)7/h1-3H2
• InChI key: CDIIZULDSLKBKV-UHFFFAOYSA-N

Description

General description

4-Chlorobutyryl chloride is a chloroacyl chloride. It undergoes coupling with 4-carboxyphenylboronic acid under standard Suzuki coupling conditions [Pd(PPh₃)₄, Na₂CO₃, DME/H₂O] to give 2′-methyl-4′-(2-oxo-1-pyrrolidinyl)biphenyl-4-carboxylic acid. Synthesis of 4-chlorobutyryl chloride using γ-butyroctone has been reported.3

Application

4-Chlorobutyryl chloride may be used in the radiosynthesis of (11)C-levetiracetam, a potential marker for PET imaging of SV2A expression. It may be used in the preparation of N-chloroacyl-6-O-triphenylmethylchitosans.

Packaging

250 mL in glass bottle

1 L