6-chloro-2-nitrotoluene
Agrochemicals 2025-03-02
Chemical Information
Name: 2-Methyl-6-chloroaniline (or other name if applicable)
Appearance: Needle-shaped crystals
Molecular Formula: C₇H₈ClN (if known)
Physical & Chemical Properties
- Solubility:
- Soluble in ethanol
- Insoluble in water
- Volatile with water vapor
- Melting Point: 37.8 °C
- Boiling Point: 238 °C
- Flash Point: 125 °C
- Refractive Index:
- 1.5377 (at 1.5 °C or unspecified wavelength)
- 1.5377 (at 69 °C)
Applications
- Dye Industry: Key intermediate for synthetic dyes.
- Agrochemicals: Used in pesticide production.
- Organic Synthesis: Precursor for:
- 3-Chloro-2-methylaniline
- 2,6-Dichlorobenzonitrile
Synthesis Method
Starting Material: o-Nitrotoluene
Procedure:
- Chlorination:
- React o-nitrotoluene with chlorine gas at 50–60 °C in the presence of anhydrous FeCl₃ (catalyst).
- Monitor reaction progress by density:
- 1.27–1.29 (48–50 °C) or
- 1.31–1.32 (26–28 °C).
- Purification:
- Wash with 5% HCl (3×) followed by water (2×).
- Neutralize with aqueous NaOH to pH 7.
- Separate layers, evaporate water, and perform pressurized fractional distillation.
- Collect fraction at 120–150 °C (5.33–8.0 kPa).
- Cool to crystallize, then filter.
Yield: >40%
Storage & Safety
- Storage: Keep in a cool, dry, ventilated area away from oxidizers.
- Handling: Use PPE (gloves, goggles) due to volatility and reactivity.
Disclaimer
This information is intended for industrial professionals and may not be exhaustive or fully accurate. Compliance with local regulations and proper qualifications is mandatory for handling or purchasing this chemical.
